当你面对一个拧不动的螺栓或螺丝钉的时候:右转是拧紧,左转是拧松。
When you confront a stuck bolt or screw: righty tighty, lefty loosey.
我们还没有学会思考,但我们正在学习。
"The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."