过去总是紧张的，未来是完美的。
"The past is a foreign country; they do things differently there."
The future belongs to those who understand that doing more with less is compassionate, prosperous, and enduring.
一个理论最重要的在于其预测的有效性，而非其美学吸引力。
对你的决定保持承诺，但在你的方法上保持灵活。