所有的真理一旦被发现,都很容易理解;关键在于发现它们。
Joy sparks the urge to play, interest sparks the urge to explore, contentment sparks the urge to savor and integrate, and love sparks a recurring cycle of each of these urges within safe, close relationships.
The only limit to our realization of tomorrow is our doubts of today.
Climate models are like time machines - they allow us to peer into possible futures.
我不是榜样,我是自由的灵魂。