If you can not measure it, you can not improve it.
I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind.
There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.
If you study science deep enough and long enough, it will force you to believe in God.
Heavier-than-air flying machines are impossible.
When you are face to face with a difficulty, you are up against a discovery.
Can you measure it? Can you express it in figures? Can you make a model of it? If not, your theory is apt to be based more upon imagination than upon knowledge.
Radio has no future." "X-rays are clearly a hoax". "The aeroplane is scientifically impossible.
In science there is only physics; all the rest is stamp collecting.
To measure is to know.
When you can measure what you are speaking about, and express it in numbers, you know something about it.
Large increases in cost with questionable increases in performance can be tolerated only in race horses and fancy women.
If you cannot measure it, then it is not science.
Christianity without the cross is nothing. The cross was the fitting close of a life of rejection, scorn and defeat. But in no true sense have these things ceased or changed. Jesus is still He whom man despiseth, and the rejected of men. The world has never admired Jesus, for moral courage is yet needed in every one of its high places by him who would "confess" Christ. The "offense" of the cross, therefore, has led men in all ages to endeavor to be rid of it, and to deny that it is the power of God in the world.
If we can't express what we know in the form of numbers, we really don't know much about it.
Accurate and minute measurement seems to the non-scientific imagination, a less lofty and dignified work than looking for something new. But nearly all the grandest discoveries of science have been but the rewards of accurate measurement and patient long-continued labour in the minute sifting of numerical results.
I believe that the more thoroughly science is studied, the further does it take us from anything comparable to atheism.
We only know God in His works, but we are forced by science to admit and to believe with absolute confidence in a Directive Power-in an influence other than physical, or dynamical, or electrical forces.
Suppose that you could mark the molecules in a glass of water; then pour the contents of the glass into the ocean and stir the latter throughly so as to distribute the marked molecules uniformly throughout the seven seas; if then you took a glass of water anywhere out of the ocean, you would find in it about a hundred of your marked molecules.
The more thoroughly I conduct scientific research, the more I believe that science excludes atheism.
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.
Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.
To live among friends is the primary essential of happiness.
Ether is the only substance we are confident of in dynamics. One thing we are sure of and that is the reality and substantiality of the luminferous ether.
I can never satisfy myself until I can make a mechanical model of a thing. If I can make a mechanical model, I can understand it. As long as I cannot make a mechanical model all the way through I cannot understand.
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