Is he neither able nor willing? Then why call him God?

There are infinite worlds both like and unlike this world of ours. For the atoms being infinite in number... are borne on far out into space.

Of all the things which wisdom provides to make us entirely happy, much the greatest is the possession of friendship.

Neither one should hesitate about dedicating oneself to philosophy when young, nor should get tired of doing it when one's old, because no one is ever too young or too old to reach one's soul's healthy.

What will happen to me if that which this desire seeks is achieved, and what if it is not?

It is not the young man who should be considered fortunate but the old man who has lived well, because the young man in his prime wanders much by chance, vacillating in his beliefs, while the old man has docked in the harbor, having safeguarded his true happiness.

Any man who does not think that what he has is more than ample, is an unhappy man, even if he is the master of the whole world.