Optimism is the foundation of courage.

Optimism is the foundation of courage.

Few cases of eyestrain have been developed by looking on the bright side of things.

Few cases of eyestrain have been developed by looking on the bright side of things.

A pessimist is one who makes difficulties of his opportunities; an optimist is one who makes opportunities of his difficulties.

A pessimist is one who makes difficulties of his opportunities; an optimist is one who makes opportunities of his difficulties.

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.

The optimist proclaims that we live in the best of all possible worlds; and the pessimist fears this is true.

The optimist proclaims that we live in the best of all possible worlds; and the pessimist fears this is true.

I'm not afraid of storms, for I'm learning how to sail my ship.

I'm not afraid of storms, for I'm learning how to sail my ship.

The optimist sees the rose and not its thorns; the pessimist stares at the thorns, oblivious to the rose

The optimist sees the rose and not its thorns; the pessimist stares at the thorns, oblivious to the rose

Do not expect the world to look bright, if you habitually wear gray-brown glasses.

Do not expect the world to look bright, if you habitually wear gray-brown glasses.

Be an optimist -- at least until they start moving animals in pairs to Cape Canaveral.

Be an optimist -- at least until they start moving animals in pairs to Cape Canaveral.