Every mental act has its place in the economy of life.
數(shù)學(xué)之美不在于其復(fù)雜性，而在于其簡潔性以及它揭示隱藏真理的方式。
Happiness is a good flow of life； the conviction that you are taking part in the universe's purpose.
Innovation is not just about technology; it's about changing the way people think and act.
The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.