Imagination is a sort of faint perception.

Anything that we have to learn to do we learn by the actual doing of it; People become builders by building and instrumentalists by playing instruments. Similarily, we become just by performing just acts, temperate by performing temperate ones, brave by performing brave ones.

Greatness of spirit is accompanied by simplicity and sincerity.

Great and frequent reverses can crush and mar our bliss both by the pain they cause and by the hindrance they offer to many activities. Yet nevertheless even in adversity nobility shines through, when a man endures repeated and severe misfortune with patience, not owing to insensibility but from generosity and greatness of soul.

Every man should be responsible to others, nor should any one be allowed to do just as he pleases; for where absolute freedom is allowed, there is nothing to restrain the evil which is inherent in every man.

He who cannot see the truth for himself, nor, hearing it from others, store it away in his mind, that man is utterly worthless.

The one exclusive sign of thorough knowledge is the power of teaching.