我通常会说心里话，但这年头说出真心话是个错误，容易引起他人误会。
I usually say what Ireally think. A great mistake nowadays, it makes one so liable to be misunderstood.
We stopped looking for monsters under our bed when we realized that they were inside us.
The method of psychology must be strictly controlled.
We need to understand the brain to build better AI.