如果你能想象它,并相信它,你就能实现它。
位置测量越精确,动量测量就越不精确,反之亦然。
True leadership in agriculture means being willing to get your hands dirty alongside your team.
The novel is the one bright book of life. Books are not life. They are only tremulations on the ether. But the novel is the one bright book of life.
The best books are the ones that children want to read again and again.