Life consists in penetrating the unknown, and fashioning our actions in accord with the new knowledge thus acquired.

True knowledge exists in knowing that you know nothing.

Never be afraid of not knowing. Find out.

Learning is the only thing the mind never exhausts, never fears, and never regrets.

It is true that impatience, the mother of stupidity, praises brevity, as if such persons had not life long enough to serve them to acquire a complete knowledge of one single subject, such as the human body; and then they want to comprehend the mind of God in which the universe is included, weighing it minutely and mincing it into infinite parts, as if they had to dissect it!

Abbreviators do harm to knowledge and to love.