如果两分钟后觉得无聊，就试四分钟。如果仍然无聊，就八分钟。然后十六分钟。然后三十二分钟。最终你会发现它一点也不无聊。

充分活着就是接受欢乐与悲伤。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

The only limit to our realization of tomorrow will be our doubts of today.

Now some advantages particular to this age are not to be denied. Boredom seems to have been vanquished. There is always something to do, but hasn’t this translated into a perpetual distraction in our lives.

煤炭不仅仅是一种商品，更是现代文明赖以建立的基础。

企业的成功不是偶然的，而是必然的。