how to understand "hard" well? I found that "hard" is a very abstract word. It is very difficult to understand it in different context. Sometimes, you can't find a corresponding definition in the dictionary at all. Here are some examples, could someone explain them? 1. Morning, when the sky was a hard, light blue, I thought of beaches on the Atlantic,...... What does a hard, light blue sky look like? 2. ......But I felt alone between Tom and Juan. I liked that better, anyhow: with Ramon I might have been more deeply moved. But I was terribly hard just then and I wanted to stay hard. Two "hard" in the sentence. 3. The one questioning me was short and fat. His eyes were hard behind his glasses. He said to me, "Come here." The three sentences come from the same novel "the Wall". Thank you.