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There's a tendency to think that our present politicians are much worse than we had in the past.But we tend to forget how awful our politicians were in the past.
The quality of the product is the dignity of the enterprise.
下一次绿色革命不会仅仅来自实验室,它将来自世界各地的农田。
The greatest weapon against stress is our ability to choose one thought over another.
正是依靠观察和思考才能找到方法。所以我们必须不断挖掘和钻研。
"The true journey of discovery consists not in seeking new landscapes, but in having new eyes."