Everything is self-evident.

Let whoever can do so deceive me, he will never bring it about that I am nothing, so long as I continue to think I am something.

Travelling is almost like talking with those of other centuries.

Intuitive knowledge is an illumination of the soul, whereby it beholds in the light of God those things which it pleases Him to reveal to us by a direct impression of divine clearness.

The mind effortlessly and automatically takes in new ideas, which remain in limbo until verified or rejected by conscious, rational analysis.

The reading of all good books is like a conversation with the finest minds of past centuries.

He who hid well, lived well.