A mediocre idea that generates enthusiasm will go further than a great idea that inspires no one.

Enthusiasm... the sustaining power of all great action.

If you have zest and enthusiasm, you attract zest and enthusiasm. Life does give back in kind.

Nothing great was ever achieved without enthusiasm.

Success is going from failure to failure without loss of enthusiasm.

The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.

There is a real magic in enthusiasm. It spells the difference between mediocrity and accomplishment

There is an eloquence in true enthusiasm.