Five Hard Truths We All Need To Accept To Get Stronger

1. When the going gets tough, people often disappear.
2. You can’t expect your environment to take care of you.
3. Experiencing loss is something we will all have to go through at some point in our lives.
4. People cannot read your mind.
5. Life is unpredictable. 

That list is from http://www.huffingtonpost.co.uk/quora-uk/5-hard-truths-we-all-need_b_16969914.html. Read the article for more details.