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Sustainability isn't an option - it's our responsibility to future generations.
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.
事物忌讳到达顶点,事情避免极其完美,人则忌讳飞黄腾达。
Life is painting a picture,not doing a sum.