The heart of another is a dark forest, always, no matter how close it has been to one's own.
The basic laws of behavior are the same for all organisms.
世界上充满了神奇的事物，耐心地等待我们的感官变得更加敏锐。
The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.