My experience is that as soon as people are old enough to know better, they don't know anything at all.

My experience is that as soon as people are old enough to know better, they don't know anything at all.

You're never too old to grow up.

You're never too old to grow up.

The mark of the immature man is that he wants to die nobly for a cause, while the mark of read more

The mark of the immature man is that he wants to die nobly for a cause, while the mark of the mature man is that he wants to live humbly for one.

Maturity of mind is the capacity to endure uncertainty.

Maturity of mind is the capacity to endure uncertainty.

The mark of the immature man is that he wants to die nobly for a cause, while the mark of read more

The mark of the immature man is that he wants to die nobly for a cause, while the mark of a mature man is that he wants to live humbly for one

Age is a very high price to pay for maturity.

Age is a very high price to pay for maturity.

Youth condemns; maturity condones.

Youth condemns; maturity condones.

Maturity is: The ability to stick with a job until it's finished; The ability to do a job without being read more

Maturity is: The ability to stick with a job until it's finished; The ability to do a job without being supervised; The ability to carry money without spending it; and The ability to bear an injustice without wanting to get even

By the age of twenty, any young man should know whether or not he is to be a specialist and read more

By the age of twenty, any young man should know whether or not he is to be a specialist and just where his tastes lie. By postponing the question we have set on immaturity a premium which controls most American personality to its deathbed.