Pilota memuāri.

“The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living.”

“Science is built of facts the way a house is built of bricks; but an accumulation of facts is no more science than a pile of bricks is a house” ― Henri Poincaré.