When I consider the wonderful activity of the mind, so great a memory of what is past, and such a capacity of penetrating into the future: when I behold such a number of arts and sciences, and such a multitude of discoveries hence arising,--I believe and am firmly persuaded that a nature which contains so many things within itself cannot be mortal.

We are bound by the law, so that we may be free.

"I believe that no characteristic is so distinctively human as the sense of indebtedness we feel, not necessarily for a favor received, but even for the slightest evidence of kindness; and there is nothing so boorish, savage, inhuman as to appear to be overwhelmed by a favor, let alone unworthy of it."

You might as well take the sun out of the sky as friendship from life: for the immortal gods have given us nothing better or more delightful.

To study philosophy is nothing but to prepare one’s self to die.

Wisdom is not only to be acquired, but enjoyed.

What is there that is illustrious that is not also attended by labor?