If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week.
When you sit with a nice girl for two hours, it seems like two minutes; when you sit on a hot stove for two minutes, it seems like two hours. That's relativity.
Time sometimes flies like a bird, sometimes crawls like a snail; but a man is happiest when he does not even notice whether it passes swiftly or slowly.
Everything that exists in your life, does so because of two things: something you did or something you didn't do.
Your work is going to fill a large part of your life... so love what you do. Your time is limited. Don't waste it.