The earth also is spherical, since it presses upon its center from every direction.
地球也是球形的,因为它从各个方向向中心施加压力。
"The world is a very puzzling place, and it is a great privilege to be able to think about it."
投资是一门终生学习的艺术,没有绝对的成功,只有不断追求的过程。