Enthusiasm is the mother of effort, and without it nothing great was ever achieved.

Enthusiasm is the mother of effort, and without it nothing great was ever achieved.

Enthusiasm is the leaping lightning, not to be measured by the horse- power of the understanding.

Enthusiasm is the leaping lightning, not to be measured by the horse- power of the understanding.

Courage is going from failure to failure without losing enthusiasm.

Courage is going from failure to failure without losing enthusiasm.

In things pertaining to enthusiasm, no man is sane who does not know how to be insane on proper occasions.

In things pertaining to enthusiasm, no man is sane who does not know how to be insane on proper occasions.

It's faith in something and enthusiasm for something that makes a life worth living.

It's faith in something and enthusiasm for something that makes a life worth living.

For every sale you miss because you're too enthusiastic, you will miss a hundred because you're not enthusiastic enough.

For every sale you miss because you're too enthusiastic, you will miss a hundred because you're not enthusiastic enough.

Enthusiasm is the inspiration of everything great. Without it no man is to be feared, and with it none despised.

Enthusiasm is the inspiration of everything great. Without it no man is to be feared, and with it none despised.

None are so old as those who have outlived enthusiasm

None are so old as those who have outlived enthusiasm

Enthusiasm is contagious. Be a carrier.

Enthusiasm is contagious. Be a carrier.