The historian must have a kind of faith that humanity will not and cannot perish.
大分子的概念并不容易被接受;它需要化学家对物质结构的思考方式发生彻底的改变。
Every smell we perceive is a complex interaction between molecules and receptors, and understanding this interaction is key to understanding our sensory experiences.
I don't believe in luck. I believe in preparation meeting opportunity.
最好的故事不会居高临下地对孩子说话,而是邀请他们进入。
As a kid, I spent my summers with my grandparents on their ranch in Texas. I helped fix windmills, vaccinate cattle, and do other chores. We also watched soap operas every afternoon, especially "Days of our Lives." My grandparents belonged to a Caravan Club, a group of Airstream trailer owners who travel together around the U.S. and Canada. And every few summers, we'd join the caravan. We'd hitch up the Airstream trailer to my grandfather's car, and off we'd go, in a line with 300 other Airstream adventurers. I loved and worshipped my grandparents and I really looked forward to these trips. On one particular trip, I was about 10 years old. I was rolling around in the big bench seat in the back of the car. My grandfather was driving. And my grandmother had the passenger seat. She smoked throughout these trips, and I hated the smell.