There is no sadder sight than a young pessimist, except an old optimist.

There is no sadder sight than a young pessimist, except an old optimist.

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 you break your neck, if you have nothing to eat, if your house is on fire, then you've got read more

If you break your neck, if you have nothing to eat, if your house is on fire, then you've got a problem. Everything else is inconvenience.

Smile when it hurts most.

Smile when it hurts most.

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.

I'm a pessimist because of intelligence, but an optimist because of will

I'm a pessimist because of intelligence, but an optimist because of will

Pessimism leads to weakness, optimism to power

Pessimism leads to weakness, optimism to power

In these times you have to be an optimist to open your eyes in the morning.

In these times you have to be an optimist to open your eyes in the morning.

Optimist: a proponent of the doctrine that black is white.

Optimist: a proponent of the doctrine that black is white.