Lord Kelvin

“When you can measure what you are speaking about, and express it in numbers, you know something about it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfact...”

“The steam engine has done much more for science than science has done for the steam engine.”

“Oersted would never have made his great discovery of the action of galvanic currents on magnets had he stopped in his researches to consider in what manner they could possibly be turned to p...”

“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.”

“The true measure of a man is what he would do if he knew he would never be caught.”

“The atheistic idea is so nonsensical that I cannot put it into words.”

“The more thoroughly I conduct scientific research, the more I believe that science excludes atheism.”