A mystery is a problem that encroaches upon itself because the questioner becomes the object of the question. Getting to Mars is a problem. Falling in love is a mystery.

Hope consists in asserting that there is at the heart of being, beyond all data, beyond all inventories and all calculations, a mysterious principle which is in connivance with me

The wise man knows how to run his life so that contemplation is possible.

Contemplation and wisdom are highest achievements and man is not totally at home with them.

I almost think that hope is for the soul what breathing is for the living organism. Where hope is lacking the soul dries up and withers.

Metaphysics is a science.

Contemporary thinkers would say that man is continuously transcending himself.