If you study science deep enough and long enough, it will force you to believe in God.

I have not the smallest molecule of faith in aerial navigation other than ballooning, or of the expectation of good results from any of the trials we heard of. So you will understand that I would not care to be a member of the Aeronautical Society.

When you cannot measure, your knowledge is meager and unsatisfactory.

I have no satisfaction in formulas unless I feel their numerical magnitude.

Large increases in cost with questionable increases in performance can be tolerated only in race horses and fancy women.

Vortices of pure energy can exist and, if my theories are right, can compose the bodily form of an intelligent species.

If you cannot measure it, then it is not science.