The worship of God is not a rule of safety - it is an adventure of the spirit, a flight after the unattainable.

Error itself may be happy chance.

But you can catch yourself entertaining habitually certain ideas and setting others aside; and that, I think, is where our personal destinies are largely decided.

Life is an offensive, directed against the repetitious mechanism of the Universe.

War can protect; it cannot create.

In a sense, knowledge shrinks as wisdom grows, for details are swallowed up in principles. The details for knowledge which are important, will be picked up ad hoc in each avocation of life, but the habit of the active utilization of well-understood principles is the final possession of WISDOM.

It is the business of future to be dangerous.... The major advances in civilization are processes that all but wreck the societies in which they occur.