心理活动是有机体与世界互动的方式。
Mental activity is the organism's way of engaging with the world.
The best way to invest is to look at what's happening in the real world and invest accordingly.
"Science is the great antidote to the poison of enthusiasm and superstition."
I became insane， with long intervals of horrible sanity.
要理解知觉，研究其在适应中的作用。