The dynamic element in my philosophy, taken as a whole, can be seen as an obstinate and untiring battle against the spirit of abstraction.

You know you have loved someone when you have glimpsed in them that which is too beautiful to die.

Metaphysics is a science.

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.

This detachment (poverty, chastity, etc.) must not be mere amputation; everything which is shaken off must be simultaneously found again at a higher level.

It is right that we be concerned with the scientific probity of metaphysics.