What we learn from history is that people don't learn from history.

数学中的每个问题都有解决方案；你只需要找到正确的路径。

The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.

The most dangerous phrase in business is 'We've always done it this way.'

The tragedy of great power politics is that even well-intentioned states are forced to act in ways that can lead to conflict and war.