借助显微镜，没有什么东西小到能逃过我们的探究；因此，一个新的可见世界被揭示给了我们的理解。
办事，不能做尽；说话，不能说尽；势力，不能倚尽；幸福，不能享尽。
To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.
