我不是为了快乐而写作，我是为了自由而写作。

To achieve genuine success, you must first identify the pitfalls that lead to failure and steer clear of them.

健康才是真正的财富，而不是金银。

The city is a living organism, constantly evolving and adapting to the needs of its inhabitants.

我来自那里。我来自这里。我不在那里，我也不在这里。

数学的本质在于它的自由。