How to make a delicious salad?

I always thought that those who eat salads are nothing more than foreign friends (dietary habits) and people whose lifelong career is to gain muscle and reduce fat, but I saw that the subject said that there are no restrictions on ingredients or even sauces! I was so excited to jump! Very pleased~
The first thing to say is that as a "cold meal", the freshness of the ingredients is the foundation of the salad. Without fresh ingredients, the salad is absolutely unpalatable! Therefore, for salads in many restaurants outside, you can basically taste the vegetables and you can see the attitude and level.