Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory.

Death and Dying

While I thought that I was learning how to live, I have been learning how to die.

Genius

Men of lofty genius when they are doing the least work are most active.

Mind

Iron rusts from disuse, stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigors of the mind.

Rest

Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer. Go some distance away because then the work appears smaller and more of it can be taken in at a glance and a lack of harmony and proportion is more readily seen.

Understanding

The noblest pleasure is the joy of understanding.