A pessimist is a man who has been compelled to live with an optimist.

A pessimist is a man who has been compelled to live with an optimist.

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.

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

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.

If Christianity is pessimistic as to man, it is optimistic as to human destiny. Well, I can say that, pessimistic read more

If Christianity is pessimistic as to man, it is optimistic as to human destiny. Well, I can say that, pessimistic as to human destiny, I am optimistic as to man.

Few things in the world are more powerful than a positive push. A smile. A word of optimism and hope. read more

Few things in the world are more powerful than a positive push. A smile. A word of optimism and hope. A "you can do it" when things are tough.

Optimism is essential to achievement and it is also the foundation of courage and true progress.

Optimism is essential to achievement and it is also the foundation of courage and true progress.

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.

Optimism is the opium of the people.

Optimism is the opium of the people.