Nobody is so constituted as to be able to live everywhere and anywhere; and he who has great duties to perform, which lay claim toall his strength, has, in this respect, a very limited choice. The influence of climate upon the bodily functionsextends so far, that a blunder in the choice of locality and climate is able not only to alienate a man from his actual duty, but also to withhold it from him altogether, so that he never even comes face to face with it.

Interest in Education will acquire great strength only from the moment when belief in a God and His care is renounced, just as the art of healing could only flourish when the belief in miracle cures ceased.

The courage of all one really knows comes but late in life.

In a friend one should have ones best enemy. You should be closest to him with your heart when you resist him.

It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters.

Ultimately, it is the desire, not the desired, that we love.

Sometimes all you need to do to win clever people over to a principle is to present it in the form of a shocking paradox.