73 Quotes by 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 unsatisfactory kind; it may be the beginning of knowledge, but you have scarely, in your thoughts advanced to the stage of science.

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

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

Nearly all of the grandest discoveries of science have been but the rewards of accurate measurement and patient, long-continued labor in the minute sifting of numerical results

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

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

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.

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