A man can do what he ought to do; and when he says he cannot, it is because he will not.

I know what I can know, and am not troubled about what I cannot know.

Nothing is more destructive of individual character than for a man to lose all faith in his own abilities for the prosecution of his work.

Not alone to know, but to act according to thy knowledge, is thy destination,--proclaims the voice of my inmost soul. Not for indolent contemplation and study of thyself, nor for brooding over emotions of piety,--no, for action was existence given thee; thy actions, and thy actions alone, determine thy worth.

To those who do not love God, all things must work together immediately for pain and torment, until, by means of the tribulation, they are led to salvation at last.

What sort of philosophy one chooses depends on what sort of person one is.

All death in nature is birth, and at the moment of death appears visibly the rising of life. There is no dying principle in nature, for nature throughout is unmixed life, which, concealed behind the old, begins again and develops itself. Death as well as birth is simply in itself, in order to present itself ever more brightly and more like to itself.