The present is the past rolled up for action, and the past is the present unrolled for understanding.
The best way to predict the future is to create it.
"Every saint has a past, and every sinner has a future."
可持续性不仅仅是植树;它是为了正确的理由在正确的地方种植正确的树木。
The elegance of a mathematical proof is in its simplicity and clarity.