Quote #28544
Reason is the substance of the universe. The design of the world is absolutely...
Quote #14225
Whatever you can do or dream you can, begin it. Boldness has genius, power,...
Quote #2771
Only I can change my life. No one can do it for me.
Quote #11686
I believe there is no source of deception in the investigation of nature which...
Quote #3573
Mathematicians are like Frenchmen: whatever you say to them they translate into their own...
Quote #27176
There are three principal means of acquiring knowledge. . . observation of nature, reflection,...
Quote #4115
It is never too late to become what we might have been.
Quote #17392
I never believed in trying to do anything. Whatever I set out to do...
Quote #17333
Knowledge must come through action you can have no test which is not fanciful,...
Quote #31719
The true secret of giving advice is, after you have honestly given it, to...