Earlier quoted context omitted.
If there is no way to express something without hurting either yourself or the other one, express yourself on a different topic. I would hate this comment too if it were directed at me.
Terrible, terrible advice. Every interaction with someone carries the chance of impact, the closer you get to talking about things related to or stemming from their core values the higher the chance you'll provoke a strong reaction (positive or negative). If you're not willing to potentially (perhaps not intentionally) express a viewpoint that could hurt the other person, then you'll be forever only talking about uni…
Hurting is optional for learning. And personally I think it's entirely disposable.