Hope is a good thing, maybe the best of things, and no good thing ever dies.
The whole problem with the world is that fools and fanatics are always so certain of themselves， and wiser people so full of doubts.
The best way to predict the future is to create it.
The invention of the cotton gin was the result of necessity and observation.
A teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron.
