Our vanity is hardest to wound precisely when our pride has just been wounded.

On the tree, Future, we build our nest; and in our solitude eagles shall bring us nourishment in their beaks!

Mothers easily become jealous of their sons' friends when they are particularly successful. As a rule a mother loves herself in her son more than she does the son himself.

Truly, it is a blessing and not a blasphemy when I teach that "above all things there stands the heaven of chance, the heaven of innocence, the heaven of accident, the heaven of wantonness".

Priests ... these turkey-cocks of God.

I have forgotten my umbrella.

I fly in dreams, I know it is my privilege, I do not recall a single situation in dreams when I was unable to fly. To execute every sort of curve and angle with a light impulse, a flying mathematics - that is so distinct a happiness that it has permanently suffused my basic sense of happiness.