What I am to be, I am now becoming.
Beware of little expenses. A small leak will sink a great ship.
The greatest inventions are those inquiries which tend to increase the power of man over matter.
Success is the residue of planning.
Proclaim not all thou knowest, all thou knowest, all thou hast, nor all thou cans't.
When men differ in opinion, both sides ought equally to have the advantage of being heard by the public; when Truth and Error have fair play, the former is always an overmatch for the latter.