中心思想： life is so pesonalized that it is kind of dumb to guess other people's perspectives in life, and it will be even more stupid to judge other people's happiness or not solely based on oneself's experience.
Life is a box of chololate, not only because chocolate is different, but also, if not more importantly, that our tastes are different.
论据： Let me use "life is tough" as an example. I heard it as a college student on a long train ride home from immigrant workers who returned from costal cities to rural countryside, wearing shaddy clothes and eating god knows what; I heard it in a up-scale bar from a self-made billionair who is about to sell another company, sipping fine wine. Do they convey the same aspect of life?
