Courses Quote by Lord Kelvin

Christianity without the cross is nothing. The cross was the fitting close of a life of rejection, scorn and defeat. But in no true…

— Lord Kelvin

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

— Lord Kelvin

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

— Lord Kelvin

If you can not measure it, you can not improve it.

— Lord Kelvin

I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but…

— Lord Kelvin

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

— Lord Kelvin

Simplification of modes of proof is not merely an indication of advance in our knowledge of a subject, but is also the surest guarantee…

— Lord Kelvin

Quaternions came from Hamilton after his really good work had been done, and though beautifully ingenious, have been an unmixed evil to those who…

— Lord Kelvin

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

— Lord Kelvin

Let nobody be afraid of true freedom of thought. Let us be free in thought and criticism; but, with freedom, we are bound to…

— Lord Kelvin

Symmetrical equations are good in their place, but ' vector ' is a useless survival, or offshoot from quaternions, and has never been of…

— Lord Kelvin

Mathematics is the only good metaphysics.

— Lord Kelvin