Intelligence is the ability to adapt to change.

Patience is not simply the ability to wait – it’s how we behave while we’re waiting.

The average person puts only 25% of his energy and ability into his work. The world takes off its hat to those who put in more than 50% of their capacity, and stands on its head for those few and far between souls who devote 100%.

Music has healing power. It has the ability to take people out of themselves for a few hours.

To be granted some kind of usable talent and to be able to use it to the fullest extent of which you are capable—this, to me, is a kind of joy that is almost unequaled.

The man who acquires the ability to take full possession of his own mind may take possession of everything else to which he is justly entitled.

Our ability to reach unity in diversity will be the beauty and the test of our civilization.

Gentleness is strength under control. It is the ability to stay calm, no matter what happens.

The question, 'Who ought to be boss?' is like asking 'Who ought to be the tenor in a quartet?' Obviously, the man who can sing tenor.

Plans will get you into things, but you have got to work your way out.

It takes all sorts of in and outdoor schooling to get adapted to my kind of fooling.

I've always felt that a person's intelligence is directly reflected by the number of conflicting points of view he can entertain simultaneously on the same topic.

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

Intelligent people tend to have less friends than the average person. The smarter you are, the more selective you become.

The first method of estimating the intelligence of a ruler is to look at the men he has around him.