A friend is a person with whom I may be sincere. Before him I may think aloud.

Let none presume to measure the irregularities of Michael Angelo or Socrates by village scales.

No man ever prayed heartily without learning something.

No law can be sacred to me but that of my nature. Good and bad are but names very readily transferable to that or this; the only right is what is after my constitution; the only wrong is what is against it.

No one can read the history of astronomy without perceiving that Copernicus, Newton, Laplace, are not new men, or a new kind of men, but that Thales, Anaximenes, Hipparchus, Empodocles, Aristorchus, Pythagorus, Oenipodes, had anticipated them.

It is sublime to think and say of another, I need never meet, or speak, or write to him: we need not reinforce ourselves, or send tokens of remembrance; I rely on him as on myself: if he did thus and thus, I know it was right.

To me, however, the question of the times resolved itself into a practical question of the conduct of life. How shall I live? We are incompetent to solve the times. Our geometry cannot span the huge orbits of the prevailing ideas, behold their return, and reconcile their opposition. We can only obey our own polarity.