This moment is all there is.

Rumi

Hope for the best, but prepare for the worst.

English Proverb

He who knows, does not speak. He who speaks, does not know.

Lao Tzu

You see things. You keep quiet about them. And you understand.

Stephen Chbosky

The flame that burns twice as bright burns half as long.

Lao Tzu

Bad is never good until worse happens.

Danish Proverb