Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.

唯一不变的是变化，持续的变化，不可避免的变化，这是当今社会的主导因素。任何明智的决策都必须考虑到世界现在的样子，以及世界未来的样子。

"I believe in myself and my abilities."

The poem is a way of living in the world, not just observing it.

If I had to live my life over again, I would live it as a trader of goods.

为人高傲自夸，喜欢独断专行，这是行事办事的祸患。