Man always made, and still makes, grotesque blunders in selecting and measuring forces, taken at random from the heap, but he never made a mistake in the value he set on the whole, which he symbolized as unity and worshipped as God. To this day, his attitude towards it has never changed, though science can no longer give to force a name.

If one shed tears, they must be shed on one's pillow.

[P]olitical and social and scientific values ... should be correlated in some relation of movement that could be expressed in mathematics, nor did one care in the least that all the world said it could not be done, or that one knew not enough mathematics even to figure a formula beyond the schoolboy s=(1/2)gt2. If Kepler and Newton could take liberties with the sun and moon, an obscure person ... could take liberties with Congress, and venture to multiply its attraction into the square of its time. He had only to find a value, even infinitesimal, for its attraction.

If any one of us has had an ambition higher than that of making money; a motive better than that of expediency; a faith warmer than that of reasoning; a love purer than that of the self; he has been slow to express it; still slower to urge it.

There are two things that seem to be at the bottom of our constitutions; one is a continual tendency towards politics; the other is family pride; and it is strange how these two feelings run through all of us.

At the utmost, the active-minded young man should ask of his teacher only mastery of his tools. The young man himself, the subject of education, is a certain form of energy; the object to be gained is economy of his force; the training is partly the clearing away of obstacles, partly the direct application of effort. Once acquired, the tools and models may be thrown away.

Thank God, I never was cheerful. I come from the happy stock of the Mathers, who, as you remember, passed sweet mornings reflecting on the goodness of God and the damnation of infants.