When you are young, you think you will be happy when you are older. But then you get older and you realize you were happy when you were young.
My mind is my weapon. My brother has his sword, King Robert has his warhammer, and I have my mind... And a mind needs books as a sword needs a whetstone, if it is to keep its edge.
When we protect biodiversity, we're protecting nature's blueprint for resilience.
解决数学问题的旅程和解决方案本身一样重要,因为它教会我们耐心、坚持和发现的快乐。