There are people who can do all fine and heroic things but one - keep from telling their happiness to the unhappy.

I try to not focus on what people expect from me.

Plato is my friend; Aristotle is my friend, but my greatest friend is truth.

Space has always fascinated me. As a young boy looking up at the stars, I found it impossible to resist thinking what was out there and if I ever would experience space first-hand.

I am not a Catholic; but I consider the Christian idea, which has its roots in Greek thought and in the course of the centuries has nourished all of our European civilization, as something that one cannot renounce without becoming degraded.