There are many idioms that start with the word "Yi". The following are some common ones: One against ten, waiting for fatigue with ease, convincing people with virtue, defeating many with fewer, learning from others, taking others as a mirror, taking others as a warning, taking myself as a warning, taking the upper and lower as an example, taking the partial as the whole, for reference only, relaxing and happy, spring breeze and rain, attacking cities and pulling out strongholds, different from person to person, different from person to person, adapting to local conditions, according to time, different from person to person, guiding according to circumstances, and setting an example.