Of course much remains to know, but we know how to learn: through scientific research.

Some of the big philosophical problems have been solved by science, at least to a 1st approximation. Examples: the problems of matter, and mind. Only philosophical reactionaries, like Noam Chomsky, claim that they are and will remain mysteries.

All philosophers can do is to abstain from helping the aggressors and to enjoin social scientists to tell the truth instead of joining the choir of liars and hypocrites.

In any event, I don't believe in instant philosophy, because interesting problems take a long time to understand and work out. Just think of the problems of truth and justice.

In the scientific community you find competent teachers and original researchers, just as in the musical community you find many good performers but very few good composers.

My Third-World roots remind me that the vast majority of our fellow human beings live hungry, sick, and uneducated, and that most social scientists, even in that world, ignore that ugly reality. This is why my papers in mathematical sociology deal not with free choice among 30 flavors of ice-cream, but with social structure, social cohesion, and social marginality.

Original philosophy is always "deviant" or even subversive.