One must never have spared oneself, one must have acquired hardness as a habit to be cheerful and in good spirits in the midst of nothing but hard truths.

The human soul yearns for discovery. By unlocking the mysteries of the universe, we unlock truths within ourselves. That's true. Our journey into space will not only make us stronger and more prosperous, but will unite us behind grand ambitions and bring us all closer together. Wouldn't that be nice? Can you believe that space is going to do that? I thought politics would do that. (Laughter.) Well, we'll have to rely on space instead.

Just let me share and give, put a smile on people's faces, and make their hearts feel happy.

The Saints were not superhuman. They were people who loved God in their hearts, and who shared this joy with others.

In music the passions enjoy themselves.

The theoretical man finds his highest satisfaction in the process of knowing and in the uncovering of the covering; whereas the artist finds delight in what still remains veiled even after the greatest unveiling.