Only the middle-aged have all their five senses in the keeping of their wits.

Only the middle-aged have all their five senses in the keeping of their wits.

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.

I live in that solitude which is painful in youth, but delicious in the years of maturity.

I live in that solitude which is painful in youth, but delicious in the years of maturity.

Age is a very high price to pay for maturity.

Age is a very high price to pay for maturity.

It is sad to grow old but nice to ripen.

It is sad to grow old but nice to ripen.

To make mistakes is human; to stumble is commonplace; to be able to laugh at yourself is maturity.

To make mistakes is human; to stumble is commonplace; to be able to laugh at yourself is maturity.

When I grow up I want to be a little boy.

When I grow up I want to be a little boy.

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 the mature man is that he wants to live humbly for one.