No wind blows in favor of a ship without direction.

The man who thinks only of his own generation is born for few.

Hold fast then to this sound and wholesome rule of life; indulge the body only as far as is needful for health.

Retire into yourself as much as possible. Associate with people who are likely to improve you. Welcome those whom you are capable of improving. The process is a mutual one. People learn as they teach.

It is the fault of youth that it cannot restrain its own impetuosity.

Fortune may rob us of our wealth, not of our courage.

The mind should be allowed some relaxation, that it may return to its work all the better for the rest.