The enemy of art is the enemy of nature; art is nothing but the highest sagacity and exertions of human nature; and what nature will be honor who honors not the human?

Whether happiness or unhappiness, freedom or slavery, in short whether good or evil results from an improved environment depends largely upon how the change has been brought about, upon the methods by which the physical results have been reached, and in what spirit and for what purpose the fruits of that change are used. Because a higher standard of living, a greater productiveness and a command over nature are not good in and of themselves do not mean that we cannot make good of them, that they cannot be a source of inner strength.

The highest perfection of intellectual nature lies in a careful and constant pursuit of true and solid happiness; so the care of ourselves that we mistake not imaginary for real happiness, is the necessary foundation of our liberty.

Enthusiasm begets enthusiasm, eloquence produces conviction for the moment; but it is only by truth to Nature and the everlasting institutions of mankind that those abiding influences are won that enlarge from generation to generation.

Truth is by its very nature intolerant, exclusive, for every truth is the denial of its opposing error.

Everything was possessed of personality, only different from us in form. Knowledge was inherent in all things. The world was a library and its books were the stones, leaves, grass, brooks, and the birds and animals that shared, alike with us, the storms and blessings of earth. We learned to do what only the student of nature ever learns, and that was to feel beauty... Observation was certain to have its rewards. Interest, wonder, admiration grew, and the fact was appreciated that life was more than mere human manifestation; it was expressed in a multitude of forms. This appreciation enriched Lakota existence. Life was vivid and pulsating; nothing was casual and commonplace. The Indian lived - lived in every sense of the word - from his first to his last breath.

Population, when unchecked, increases in a geometrical ratio. Subsistence increases only in an arithmetical ratio. A slight acquaintance with numbers will show the immensity of the first power in comparison to the second. By that law of our nature which makes food necessary to the life of man, the effects of these two unequal powers must be kept equal. This implies a strong and constantly operating check on population from the difficulty of subsistence. This difficulty must fall somewhere and must necessarily be severely felt by a large portion of mankind.

Man's conquest of nature has been astonishing. His failure to conquer human nature has been tragic.

The more one seeks ‘the good’ outside oneself as something to be acquired, the more one is faced with the necessity of discussing, studying, understanding, analysing the nature of good. the more, therfore, one becomes involved in abstractions and in the confusion of divergent opinions. The more ‘the good’ is objectively analysed, the more it is treated as something to be attained by special virtuous techniques, the less real it becomes.

The defects of human nature afford us opportunities of exercising our philosophy, the best employment of our virtues. If all men were righteous, all hearts true and frank and loyal, what use would our virtues be?

Human beings are not born with human nature - they develop it.

The truth is that it is contrary to the nature of love if it is not violent, and contrary to the nature of violence if it is constant.

Exceptional abilities develop most fully in cultures that prize them... no aspect of human nature is immune to social influence.

Whatever has value in our world now does not have value in itself, according to its nature - nature is always value-less, but has been given value at some time, as a present - and it was we who gave and bestowed it.

When one speaks of humanity, the idea is fundamental that this is something that separates and distinguishes man from nature. In reality, however, there is no such separation: ‘natural’ qualities and those called properly ‘human’ are indivisibly grown together. Man, in his highest and most noble capacities, is wholly nature and embodies its uncanny dual character. Those of his abilities which are awesome and considered inhuman are perhaps the fertile soil out of which alone all humanity... can grow.

By watching yourself in your daily life with alert interest, with the intention to understand rather than to judge, in full acceptance of whatever may emerge, because it is there, you encourage the deep to come to the surface and enrich your life and consciousness with its captive energies. This is the great work of awareness; it removes obstacles and releases energies by understanding the nature of life and mind. Intelligence is the door to freedom and alert attention is the mother of intelligence.

If one lives with Nature a little while, he soon recognizes the harmony of creation... Each of us is, therefore, an instrument of God. When one thinks of his humble self in this light, life takes on a more profound meaning.

Programmes of a political nature are important and products of social quality that can be effective only if the underlying structure of social values is right. The social values are right only if the individual values are right. The place to improve the world is first in one’s own heart and head and hands, and then work outside from there.

Conceit is to nature what paint is to beauty; it is not only needless, but it impairs what it would improve.