1、habit is second nature. 习惯成自然。
2、custom makes all things easy. 若照习惯办，万事皆不难。
3、custom is a second nature. 习惯是第二天性。
4、a bad custom is like a good cake, better broken than kept. 坏习惯像鲜馅饼，分食要比保存好。
5、practice makes perfect. 熟能生巧。
6、don't leave today's work for tomorrow. 当日事，当日毕。