Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter.
The only way to deep happiness is to do something you love to the best of your ability
Physics isn't the most important thing. Love is.
I want to marry Arline because I love her - which means I want to take care of her. That is all there is to it. I want to take care of her. I am anxious for the responsibilities and uncertainties of taking care of the girl I love.
The first principle is that you must not fool yourself and you are the easiest person to fool.