Do not be afraid of a small beginning. great things come afterwards. Be courageous. Do not try to lead your brethren, but serve them. The brutal mania for leading has sunk many a great ships in the waters of life. Take care especially of that, i.e. be unselfish even unto death, and work.
Every one who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the Universe-a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.
When I look back, I am so impressed again with the life-giving power of literature. If I were a young person today, trying to gain a sense of myself in the world, I would do that again by reading, just as I did when I was young.