I never knew a more presumptuous person than myself. The fact that I say that shows that what I say is true.

All ages have said and repeated that one should strive to know one's self. This is a strange demand which no one up to now has measured up to and, strictly considered, no one should. With all their study and effort, people are directed to what is outside, to the world about them, and they are kept busy coming to know this and to master it to the extent that their purposes require. . . . How can you come to know yourself? Never by thinking, always by doing. Try to do your duty, and you'll know right away what you amount to. And what is your duty? Whatever the day calls for.

In all things, to serve from the lowest station upwards is necessary. To restrict yourself to a trade is best. For the narrow mind, whatever he attempts is still a trade; for the higher, an art; and the highest in doing one thing does all, or, to speak less paradoxically, in the one thing which he does rightly he sees the likeness of all that is done rightly.

The century is advanced, but every individual begins afresh.

Pain and pleasure, good and evil, come to us from unexpected sources. It is not there where we have gathered up our brightest hopes, that the dawn of happiness breaks. It is not there where we have glanced our eye with affright, that we find the deadliest gloom. What should this teach us? To bow to the great and only Source of light, and live humbly and with confiding resignation.

If a man writes a book, let him set down only what he knows. I have guesses enough of my own.

I had rather be Mercury, the smallest among seven [planets], revolving round the sun, than the first among five [moons] revolving round Saturn.