The unnatural, that too is natural.

There is no past we can bring back by longing for it. There is only an eternal now that builds and creates out of the past something new and better.

What men usually say of misfortunes, that they never come alone, may with equal truth be said of good fortune; nay, of other circumstances which gather round us in a harmonious way, whether it arise from a kind of fatality, or that man has the power of attracting to himself things that are mutually related.

Only by joy and sorrow does a person know anything about themselves and their destiny. They learn what to do and what to avoid.

We are surrounded by abysses, but the greatest of all depths is in our own heart, and an irresistible leaning leads us there. Draw thyself from thyself!

If I work incessantly to the last, nature owes me another form of existence when the present one collapses.

If you start to think of your physical and moral condition, you usually find that you are sick.