Half of the troubles of this life can be traced to saying yes too quickly and not saying no soon enough.

There's a great power in words, if you don't hitch too many of them together.

Threescore years and ten is enough; if a man can't suffer all the misery he wants in that time, he must be numb.

There are only two qualities in the world: efficiency and inefficiency; and only two sorts of people: the efficient and the inefficient.

Life consists not in holding good cards but in playing those you hold well.

The best time for you to hold your tongue is the time you feel you must say something or bust.

The great art of writing is knowing when to stop.