如果物体处于静止状态或作匀速直线运动,只要没有外力作用,物体将保持静止状态或匀速直线运动状态。
做出伟大工作的唯一途径就是热爱你所做的事。
The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.