The one thing worth living for is to keep one's soul pure.

A small error in the beginning is a great one in the end.

Beware of the man of one book.

Man does not choose of necessity... in all particular goods, the reason can consider an aspect of some good, and the lack of some good, which has the aspect of evil; and in this respect, it can apprehend any single one of such goods as to be chosen or to be avoided. The perfect good alone which is Happiness, cannot be apprehended by the reason as an evil, or as lacking in any way. Consequently man wills Happiness of necessity, nor can he will not to be happy, or to be unhappy. Now since choice is not of the end, but of the means... it is not of the perfect good, which is Happiness, but of other particular goods. Therefore man chooses not of necessity, but freely.

Through every mortal sin which is contrary to God’s commandments, an obstacle is placed to the outpouring of charity, since from the very fact that a man chooses to prefer sin to God’s friendship, which requires that we should follow His will, it follows that the habit of charity is lost at once through one mortal sin.

Youth is a cause of hope for three reasons... And these three reasons may be gathered from the three conditions of the good which is the object of hope - namely, that it is future, arduous and possible... For youth has much of the future before it, and little of the past; and therefore since memory is of the past, and hope of the future, it has little to remember and lives very much in hope. Again, youths, on account of the heat of their nature, are full of spirit, so that their heart expands, and it is owing to the heart being expanded that one tends to that which is arduous; therefore youths are spirited and hopeful. Likewise they who have not suffered defeat, nor had experience of obstacles to their efforts, are prone to count a thing possible to them. Therefore youths, through inexperience of obstacles and of their own shortcomings, easily count a thing possible, and consequently are of good hope.

The purpose of this discipline is to bring man into the habit of applying the insight that has come to him as the result of the preceding disciplines. When one is rising, standing, walking, doing something, stopping, one should constantly concentrate one’s mind on the act and the doing of it, not on one’s relation to the act, or its character or value. One should think: there is walking, there is stopping, there is realizing; not, I am walking, I am doing this, it is a good thing, it is disagreeable, I am gaining merit, it is I who am realizing how wonderful it is. Thence come vagrant thoughts, feelings of elation or of failure and unhappiness. Instead of all this, one should simply practice concentration of the mind on the act itself, understanding it to be an expedient means for attaining tranquillity of mind, realization, insight and Wisdom; and one should follow the practice in faith, willingness and gladness. After long practice the bondage of old habits become weakened and disappears, and in its place appear confidence, satisfaction, awareness and tranquillity. What is the Way of Wisdom designed to accomplish? There are three classes of conditions that hinder one from advancing along the path to Enlightenment. First, there are the allurements arising from the senses, from external conditions and from the discriminating mind. Second, there are the internal conditions of the mind, its thoughts, desires and mood. All these the earlier practices (ethical and mortificatory) are designed to eliminate. In the third class of impediments are placed the individual’s instinctive and fundamental (and therefore most insidious and persistent) urges - the will to live and to enjoy, the will to cherish one’s personality, the will to propagate, which give rise to greed and lust, fear and anger, infatuation, pride and egotism. The practice of the Wisdom Paramita is designed to control and eliminate these fundamental and instinctive hindrances.

A cheerful spirit is one of the most valuable gifts ever bestowed upon humanity by a kind Creator. It is the sweetest and the most fragrant flower of the Spirit, that constantly sends out its beauty and fragrance, and blesses everything within its reach. It will sustain the soul in the darkest and most dreary places of this world. It will hold in check the demons of despair, and stifle the power of discouragement and hopelessness. It is the brightest star that ever cast its radiance over the darkened soul, and one that seldom sets in the gloom of morbid fancies and foreboding imaginations.

It is one of the worst of errors to suppose that there is any other path of safety except that of duty.

Do not yearn for any other situation in the world besides the one you actually find yourself in.

The reward of doing one duty is the power to do another.

I saw there was no boundary lines between vegetable and animal life, and hence no beginning nor end to either... All physical phenomena, at their best, are dull and murky till they come up into spiritual life. As an illustration that every law has its universality take the familiar law or principle that action and reaction are equal. What is this but reaping the whirlwind after one has sown the wind, or how does natural law differ from this teaching: ‘Whatsoever a man soweth that shall he also reap?’ Are they aught but different strains in the great cosmic melody?

The first real mental illumination I remember to have experienced was when I saw that the universe exists in each of its individual atoms - that is, the universe is the result of a few simple processes infinitely repeated. When a drop of water has been mathematically measured, every principle will have been used which would be called form in the measurement of the heavens. All life on the globe is sustained by digestion and assimilation; when by voluntary and traumatic action these stop death follows. The history of an individual mind is the history of the race. Know one thing in its properties and relations and you will know all things.

I cannot teach you the ten principles of service. But a little child and a thief can show you what they are. From the child you can learn three things: He is merry for no particular reason; never for a moment is he idle; when he needs something, he demands it vigorously. The thief can instruct you in seven things: He does his service by night; if he does not finish what he has set out to do, in one night, he devotes the next night to it; he and those who work with him love one another; he risks his life for small gains; what he takes has so little value for him that he gives it up for a very small coin; he endures blows and hardship, and it matters nothing to him; he likes his trade and would not exchange it for any other.

An inability to stay quiet... is one of the most conspicuous failings of mankind.

Experience, which destroys innocence, also leads one back to it.

Gentleness in the gait is what simplicity is in the dress. Violent gesture or quick movement inspires involuntary disrespect. One looks for a moment at a cascade; but one sits for hours, lost in thought, and gazing upon the still water of a lake. A deliberate gait, gentle manners, and a gracious tone of voice - all of which may be acquired - give a mediocre man an immense advantage over those vastly superior to him. To be bodily tranquil, to speak little, and to digest without effort are absolutely necessary to grandeur of mind or of presence, or to proper development of genius.

The more one judges, the less one loves.

To succeed, one must possess an effective combination of ability, ambition, courage, drive, hard work, integrity and loyalty.