The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

问题的解决是突然出现的，而不是通过逐步、一步一步的过程来接近的。

When [competitors are] in the shower in the morning, they're thinking about how they're going to get ahead of one of their top competitors. Here in the shower, we're thinking about how we are going to invent something on behalf of a customer.

Life is short, make every moment count.

The integration of science and agriculture will create a brighter future for farmers.

"The past is a puzzle, and the historian is the person who tries to put the pieces together."