In a sense, knowledge shrinks as wisdom grows: for details are swallowed up in principles.

No one who achieves success does so without acknowledging the help of others. The wise and confident acknowledge this help with gratitude.

Science repudiates philosophy. In other words, it has never cared to justify its truth or explain its meaning.

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.

Seek simplicity but distrust it.

By relieving the brain of all unnecessary work, a good notation sets it free to concentrate on more advanced problems, and in effect increases the mental power of the race.

Rightness of limitation is essential for growth of reality.