To teach mathematics is to inspire the next generation of thinkers and problem solvers.
Quality is never an accident; it is always the result of intelligent effort.
每个角色都应该想要点什么,哪怕只是一杯水。
心理学理论必须通过实践经验的检验。
Why should a dog, a horse, a rat, have life, and thou no breath at all?