To understand psychology, observe behavior in its natural context.

In baking, as in life, it’s the little things that make the biggest difference.

我被告知进步的道路既不是快速的，也不是容易的。

The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.

The properties of the whole are not deducible from the properties of the parts.

写作就是重写，重写就是理解。