The right moment wears a full head of hair: when it has been missed, you can't get it back; it's bald in the back of the head and never turns around.

Time, which wears down and diminishes all things, augments and increases good deeds, because a good turn liberally offered to a reasonable man grows continually through noble thought and memory.

The remedy for thirst? It is the opposite of the one for a dog bite: run always after a dog, he'll never bite you; drink always before thirst, and it will never overtake you.

Francois Rabelais Quotes