People of the same trade seldom meet together， even for merriment and diversion， but the conversation ends in a conspiracy against the public， or in some contrivance to raise prices.

The future of drones is open and shared.

When the third appeared, he thrust at it with the knife, only to feel the blade[刀片] snap as the fish rolled. 

Global challenges require global thinking and local action.

The idea of a multiverse is a natural consequence of the inflationary universe model.

数学的快乐来自于为理解而奋斗。

The work is never finished until it's in the world.

The realities are that, you know, as a black man, Barack can get shot going to the gas station.

You are not your circumstances, you are your possibilities.

I am a fighter, and I love a challenge.