When a wife has a good husband, it is easily seen on her face.

Oh how sweet it is to hear one's own convictions from another's lips.

All intelligent thoughts have already been thought; what is necessary is only to try to think them again.

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

What is hardest of all? That which seems most simple: to see with your eyes what is before your eyes.

Everything factual is, in a sense, theory. The blue of the sky exhibits the basic laws of chromatics. There is no sense in looking for something behind phenomena: they are theory.

What is the path? There is no path. On into the unknown.