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.

I believe that man will not merely endure; he will prevail.

I believe that man will not merely endure; he will prevail.

For myself I am an optimist - it does not seem to be much use being anything else

For myself I am an optimist - it does not seem to be much use being anything else

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.

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.

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

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.

Positiveness is a good quality for preachers and speakers because, whoever shares his thoughts with the public will convince them read more

Positiveness is a good quality for preachers and speakers because, whoever shares his thoughts with the public will convince them as he himself appears convinced.