Euripides

To persevere, trusting in what hopes he has, is courage in a man.

Do not plan for ventures before finishing what's at hand.

The best of seers is he who guesses well.

Friends show their love in times of trouble, not in happiness.

The greatest pleasure of life is love.

There is something in the pang of change More than the heart can bear, Unhappiness remembering happiness.

Happiness is brief. It will not stay. God batters at its sails.

Some wisdom you must learn from one who's wise.

Along with success comes a reputation for wisdom.

Cleverness is not wisdom.

Joint undertakings stand a better chance when they benefit both sides.

Chance fights ever on the side of the prudent.