The key to sustainable development is to balance economic growth and environmental protection.
数学不是沿着一条清理得很好的高速公路小心行进,而是一次进入陌生荒野的旅程,探险者常常会迷路。
Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws.
The more you read, the more you realize how little you know.
The best way to predict the future is to invent it.
I write to understand, to grasp, to seize the reality that escapes me.