Upon the whole i am inclined to

Upon the whole, I am inclined to think that the far greater part, if not all, of those difficulties which have hitherto amused philosophers, and blocked up the way to knowledge, are entirely owing to our selves.  That we have first raised a dust, and then complain, we cannot see.  ~George Berkeley

And this activity alone would seem to

And this activity alone would seem to be loved for its own sake; for nothing arises from it apart from the contemplating, while from practical activities we gain more or less apart from the action.  And happiness is thought to depend on leisure; for we are busy that we may have leisure, and make war that we may live in peace.  ~Aristotle, Nichomachean Ethics, "Book X: Pleasure and Happiness," translated by W.D. Ross