我的未完成的过去，从后边缠绕到我身上，使我难于死去，请从它那里释放了我吧。
In mathematics, the most profound ideas often arise from the simplest observations.
I like dogs. You always know what a dog is thinking. It has four moods. Happy, sad, cross and concentrating. Also, dogs are faithful and they do not tell lies because they cannot talk.
In science, patience is not just a virtue; it's a necessity.