People won't have time for you if you are always angry or complaining.
Stephen Hawking
I think what he's trying to say is that if you are a person that have a very bad attitude or behavior, no one is going to talk to you or help you at anything.
For me I understand that having a bad attitude is bad but you have to be nice and friendly too. If I am a bad person no ones is going to talk to me because no one likes a bad behavior person. If you are a helpful guy everyone is going to like you.













