You have to produce something of value, no matter if it is a piece of art, a philosophy of life, a web site or an assembler, but you have to produce something to give meaning to your life. Happiness is something you have to fight for, it is certainly not something you have a right to. Many people find it annoying that happiness fades away as soon as the value is produced. Of course we want our happiness to be sustained. This leads inevitably to the conclusion that new and better values have to be produced.
Progress is a continued effort to swim against the stream.
Think like a man of action, act like a man of thought. No limits in time and space . Hard to achieve now. But there are resources to extend our possibilities. We are able to fly.