With regard to philosophical metaphysics, I always see increasing numbers who have attained to the negative goal, but as yet few who climb a few rungs backwards; one ought to look out, perhaps, over the last steps of the ladder, but not try to stand upon them.
There is more to be learnt from every page of David Hume than from the collected philosophical works of Hegel, Herbart, and Schleiermacher are taken together.
From a philosophical perspective, I want to fight off isolationism and protectionism, be it part of another voice out there that says, wait a minute, what matters to women in Afghanistan matters to America. An isolationist point of view says it doesn't matter. The articulation of "all life matters" helps frame the case that it does matter what happens to a woman in Afghanistan.
Philosophical knowledge is the knowledge gained by reason from concepts ; mathematical knowledge is the knowledge gained by reason from the construction of concepts.