心理学必须是一门纯粹描述性的科学。
Psychology must be a purely descriptive science.
I have not told the half of what I saw.
凡是合理的都是存在的，凡是存在的都是合理的。
"It is a capital mistake to theorize before one has data."
每一次站在舞台上，我都希望能把最好的音乐带给大家。
Hope is a good thing, maybe the best of things, and no good thing ever dies.
By the help of microscopes, there is nothing so small as to escape our inquiry; hence there is a new visible world discovered to the understanding.