Heaven has given human beings three things to balance the odds of life: hope, sleep, and laughter.

From such crooked wood as that which man is made of, nothing straight can be fashioned.

Two things awe me most, the starry sky above me and the moral law within me.

THERE ARE TWO THINGS that don't have to mean anything, one is music and the other is laughter.

Deaths, births, and marriages, considering how much they are separately dependent on the freedom of the human will, should seem to be subject to no law according to which any calculation could be made beforehand of their amount; and yet the yearly registers of these events in great countries prove that they go on with as much conformity to the laws of nature as the oscillations of the weather.

In every department of physical science there is only so much science, properly so-called, as there is mathematics.

What can I know? What ought I to do? What may I hope?