Responsibility, not to a superior, but to one’s conscience, the awareness of a duty not exacted by compulsion, the necessity to decide which of the things one values are to be sacrificed to others, and to beat the consequences of one’s own decision, are the very essence of any morals which deserve the name.

Death is the radical refutation of man’s power and a stark reminder of the necessity to relate to a meaning which lies beyond the dimension of human time. Humanity without death would be arrogance without end. Nobility has its root in humanity, and humanity derived much of its power from the thought of death.

Without necessity nothing budges, the human personality least of all. It is tremendously conservative, not to say torpid. Only acute necessity is able to rouse it. The developing personality obeys no caprice, no command, no insight, only brute necessity.

Joy is a constituent of life, a necessity of life; it is an element of life’s value and life’s power. As every man has need of joy, so too, every man has a right to joy… It is a condition of religious living.

Weapons are tools of fear; a decent man will avoid them except in the direst necessity and, if compelled, will use them only with the utmost restraint. Peace is the highest value.

While the right to talk may be the beginning of freedom, the necessity of listening is what makes the right important.

The necessity of establishing some form of government [is] to supply the defect of moral virtue.

We have not so much the privilege of intelligence, viewed as something above and against nonhuman nature, but the responsibility and necessity to convert our intelligence to the earth. We need to learn how to use intelligence to mend the distortions we have created and how to convert intelligence into an instrument that can cultivate the harmonies and balances of the ecological community and bring these to a refinement.

As for the necessity of coining new names for God, it is incomprehensible that philosophy and civilization can be enriched by ceasing to think of God as Life, Truth, Beauty, and Love, and beginning to think of Him as a blind and whirling space-time configuration dancing dizzily in an Einstein universe, plunging forward along a path of which He is ignorant, toward a goal of which He knows nothing whatever.

Show me a thoroughly satisfied man and I will show you a failure. I believe that restlessness is discontent, and discontent is merely the first necessity of progress.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.

The might of necessity brooks no resistance.

The might of necessity brooks no resistance.

Modern science has imposed on humanity the necessity of wandering.

The necessity of getting reconciled with the idea of his possible extinction may breed a new humility and may rid man of that biological jingoism which made him regard himself as the crown of creation.

The most potent force in the world is an idea which, when organized into a body of concepts, becomes a culture and way of life. Concepts are psychological lenses focusing our experiences. Our physical eyes bring their reports but our conceptual lenses interpret them. If we would “know ourselves” it is a paramount necessity that we should examine critically and impartially our conceptual heritage and endeavor to discover why we accept or reject it.

For the victor, there is no necessity for explanations.

Nature does nothing for the sake of an end, for that eternal and infinite Being whom we call God or Nature acts by the same necessity by which He exists.

Ignorance lies at the bottom of all human knowledge, and the deeper we penetrate the nearer we arrive unto it. For what we truly know, or what can we clearly affirm, of any one of those important things upon which all our reasonings must of necessity be built - time and space, life and earth, matter and mind?

Virtue does not of necessity go hand in hand with primitive plumbing, and nobility can be found in a skyscraper no less than in a log cabin.