Science is busy with the hither-end of things, not the thither-end.
Science has not solved difficulties, only shifted the points of difficulty.
Purpose, and to be thoroughly wedded to that purpose, is three quarters of salvation.
Faith is among men what gravity is among planets and suns.
All great discoveries are made by men whose feelings run ahead of their thinking.
Genius does not care much for a set of explicit regulations, but that does not mean that genius is lawless.