Man's maturity: to have regained the seriousness that he had as a child at play.

Man's maturity: to have regained the seriousness that he had as a child at play.

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

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

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.

It is sad to grow old but nice to ripen.

It is sad to grow old but nice to ripen.

Maturity begins to grow when you can sense your concern for others outweighing your concern for yourself.

Maturity begins to grow when you can sense your concern for others outweighing your concern for yourself.

The immature man wants to die nobly for a cause, while the mature man wants to live humanely for one.

The immature man wants to die nobly for a cause, while the mature man wants to live humanely for one.

Maturity is achieved when a person postpones immediate pleasures for long-term values.

Maturity is achieved when a person postpones immediate pleasures for long-term values.

One stops being a child when one realizes that telling one's trouble does not make it better.

One stops being a child when one realizes that telling one's trouble does not make it better.

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.