Only by joy and sorrow does a person know anything about themselves and their destiny. They learn what to do and what to avoid.

The greatest joy of a thinking man is to have searched the explored and to quietly revere the unexplored.

It is in the half fools and the half wise that the greatest danger lies.

To create something you must be something.

What is hardest of all? That which seems most simple: to see with your eyes what is before your eyes.

For the butterfly, mating and propagation involve the sacrifice of life, for the human being, the sacrifice of beauty.

Life is but a preparation for what there is to come.