“There are two kinds of people. Those who climb mountains and those who sit in the shadow of the mountains and critique the climbers.”

“A voice said, "Climb." And he said, "How shall I climb?the mountains are so steep that I cannot climb."The voice said, "Climb or die."He said, "But how?I see no way up those steep ascents. This that is asked is too hard for me."The voice said, "Climb, or perish, soul and body of theemind and spirit of thee. There is no second chance for any son of man. Climb or die."Then he remembered that he had read in the books of the bravest climbers on the hills of the earth that sometimes they were aware of the presence of a Companion on the mountains who was not one of the earthly party of climbers. And he rememberd a word in the Book of Mountaineers...it heartened him,for it told him that he was created to walk in precarious places, not on the easy levels of life.”

“There are two kinds of people in the world, those who believe there are two kinds of people in the world and those who don't.”

“There are two kinds of people in this world: Those who believe there are two kinds of people in this world and those who are smart enough to know better.”

“There are two kinds of people in this world. The kind who divide the world into two kinds of people and those who don't.”

“There are only two kinds of people in the world. Those who are alive and those who are afraid”