世界上最美好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
"The study of mind must be grounded in biology."
All things are composed of four elements – Earth, Water, Fire, and Air.”
译文：遵循古法成就的功业，不完全高于今世；效法古人的学问，不能够制定今天的制度。
意识的元素是心理生活不可再分的组成部分。
性格是一个人习惯的总和。