选择最好的生活,因为习惯会使它愉快。
"We're going on a bear hunt. We're going to catch a big one. What a beautiful day! We're not scared."
节俭:只为对人对己有益的事情买单,即不要浪费。
数学的研究就像空气或重力——它无处不在,你看不到它,但你知道它在那里。
We must act now, because the ocean’s decline is a crisis we cannot ignore.