物理学的美丽在于它能够用简单的原理解释复杂的事物。
The most expensive cost in free-to-play games is players' trust—once overdrawn, it can never be bought back.
水,涌出,自然地流淌;至人的德行,不需着意修炼,万物自会随附。就像天自然高,地自然厚,日月自然明,何需修行!