Experiment is the sole interpreter of the artifices of Nature.
Make your work to be in keeping with your purpose
No human investigation can claim to be scientific if it doesn't pass the test of mathematical proof.
Who sows virtue reaps honor.
Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.
Simplicity is the ultimate sophistication.