Weaker Brother??

I could never imagine that in seminary there will be weaker brother because I think we are mature enough to come into the seminary to be equipped. Someone told me that it is because we come to be equipped shows that we are weak. Now, you know what I mean as a weaker brother: doing something that will causes your neighbor to stumble. I think, if you are ready to come into seminary, you must be strong in your faith and confident with it already. But sadly, even playing cards, someone will think that it will stumble the students. Just because I am using cards which has Carlsberg, Sports Toto logo on it will cause them to stumble. This is just ridiculous, isn't it?

In words, people say please don't speak so harsh. I don't know when it happens that speaking the truth is treated as harsh. I really don't know how to speak politically correct words. And I do not know why people can mixed manners with politically correct words. Since when if you speak politically correct means that you have manners?