A Coincidence is a convergence through contiguity or similarity of causally unconnected events.

Coincidence is God's way of remaining anonymous.

Coincidence's forces are continually shaping us.

Coincidence is so commonplace that having no unusual coincidence is far more unusual than any coincidence could possibly be.

Delay is painful — Every delay, however trifling, seems too long to a man in haste.

Delay is unwise — Heaven never helps the men who will not act.

Delay is unwise — Delays have dangerous ends.

Delay is a certain breeder of anger. To protract a great design is often to ruin it.

A Discovery is great, if it is a fact whose appearance in science gives rise to shining ideas, whose light dispels many obscurities and shows us new paths.

Discovery is secondary to persuasion — In science the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.

Discovery is seeing what everybody has seen and thinking what nobody has thought.

Discovery is the ability to be puzzled by simple things.