So of cheerfulness, or a good temper, the more it is spent, the more of it remains.

So of cheerfulness, or a good temper, the more it is spent, the more of it remains.

Pessimism leads to weakness, optimism to power

Pessimism leads to weakness, optimism to power

A pessimist is an optimist with experience

A pessimist is an optimist with experience

Teaching is the greatest act of optimism

Teaching is the greatest act of optimism

A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

I became an optimist when I discovered that I wasn't going to win any more games by being anything else.

I became an optimist when I discovered that I wasn't going to win any more games by being anything else.

An optimist is a person who sees a green light everywhere, while a pessimist sees only the red stoplight. . read more

An optimist is a person who sees a green light everywhere, while a pessimist sees only the red stoplight. . . The truly wise person is colorblind.

The only limit to our realization of tomorrow will be our doubts of today.

The only limit to our realization of tomorrow will be our doubts of today.

An optimist will tell you the glass is half-full; the pessimist, half-empty; and the engineer will tell you the glass read more

An optimist will tell you the glass is half-full; the pessimist, half-empty; and the engineer will tell you the glass is twice the size it needs to be