Elegance is not an ornament worthy of man.

To rule yourself is the ultimate power

Fortune's not content with knocking a man down; she sends him spinning head over heels, crash upon crash.

We have been born under a monarchy; to obey God is freedom.

Let us fight the battle-retreat from the things that attract us and rouse ourselves to meet the things that actually attack us.

A large library is apt to distract rather than to instruct the learner; it is much better to be confined to a few authors than to wander at random over many.

A single lifetime, even though entirely devoted to the sky, would not be enough for the study of so vast a subject. A time will come when our descendants will be amazed that we did not know things that are so plain to them.