Markets can remain irrational longer than you can remain solvent.

Experience shows that what happens is always the thing against which one has not made provision in advance.

The biggest problem is not to let people accept new ideas, but to let them forget the old ones.

It is a good thing to make mistakes so long as you're found out quickly.

The markets are moved by animal spirits, and not by reason.

If you owe your bank manager a thousand pounds, you are at his mercy. If you owe him a million pounds, he is at your mercy.

Long run is a misleading guide to current affairs. In the long run we are all dead.

It is better to be roughly right than precisely wrong.

The boom, not the slump, is the right time for austerity at the Treasury.

When the facts change, I change my mind.

The difficulty lies, not in the new ideas, but in escaping from the old ones.

Obviously I faced the possibility of not returning when first I considered going. Once faced and settled there really wasn't any good reason to refer to it.

Women must pay for everything. They do get more glory than men for comparable feats, but, they also get more notoriety when they crash.

There are two kinds of stones, as everyone knows, one of which rolls.

Aviation records don't fall until someone is willing to mortgage the present for the future.

Flying might not be all plain sailing, but the fun of it is worth the price.

Human crises have a way of happening at inconvenient times.

The soul's dominion? Each time we make a choice, we pay With courage to behold the restless day, And count it fair.

Anticipation, I suppose, sometimes exceeds realization.