DNA的双螺旋结构不仅美丽,而且优雅简单。
海洋的资源并非无限;我们必须以智慧和克制来养殖这些资源。
"Friendship isn't about who you've known the longest. It's about who walked into your life and said, 'I'm here for you,' and proved it."
Wisdom comes to us when it can no longer do any good.