If you want to live a hundred years, how do you want to live your life? At the age of 100, you should go shopping with your great-grandchildren, but not in a wheelchair.
I'm an adrenaline junkie. I love climbing crazy trees or cliffs, which doesn't make my mom very happy.
That is, a system starts with a group of interrelated propositions which involve reference to empirical observations within the logical framework of the propositions in question.
For un-subscribe please check the mail footer.