There is nothing in science which teaches the origin of anything at all.

I have not had a moment's peace or happiness in respect to electromagnetic theory since November 28, 1846. All this time I have been liable to fits of ether dipsomania, kept away at intervals only by rigorous abstention from thought on the subject.

At what time does the dissipation of energy begin?

Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.

Science is bound, by the everlasting vow of honour, to face fearlessly every problem which can be fairly presented to it.

There is nothing in science which teaches the origin of anything at all.

When you are face to face with a difficulty, you are up against a discovery.