In the end we retain from our studies only that which we practically apply.

Everything we do has a result. But that which is right and prudent does not always lead to good, nor the contrary to what is bad.

A noble soul alone can noble souls attract; And knows alone, as ye, to hold them.

Power is neither male nor female.

Properly speaking, we learn from those books only that we cannot judge. The author of a book that I am competent to criticise would have to learn from me.

Neither art thou the man to catch the fiend and hold him! [Ger., Du bist noch nicht der Mann den Teufel festzuhalten.

In nature we never see anything isolated, but everything in connection with something else which is before it, beside it, under it and over it.