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.

It takes a long time to bring excellence to maturity.

It takes a long time to bring excellence to maturity.

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

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

You're never too old to grow up.

You're never too old to grow up.

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.

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.

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.

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.

Maturity of mind is the capacity to endure uncertainty.

Maturity of mind is the capacity to endure uncertainty.