世间之事如同棋局般变化无常，人情则像纸一样淡薄。
The method of psychology must be as exact as that of the physical sciences.
编程的艺术是组织复杂性的艺术。
好奇心是发现的催化剂。
"We are all just passing through, leaving traces of ourselves behind like footprints in the snow."