你必须准备好受苦并享受痛苦。
You have to be ready to suffer and enjoy suffering.
Every artist dips his brush in his own soul, and paints his own nature into his pictures.
仁德之人将天地万物视为一个整体。
One of the first things taught in introductory statistics textbooks is that correlation is not causation. It is also one of the first things forgotten.