$\S$ (From the Tractatus) Assume every possible scientific question is answered. Imagine your life under this assumption. Do you feel the central problems of your life are solved? Are there remaining questions?
$\S$ The central problem in life is what is its meaning. The central problem of philosophy, to make rationally intelligible the statement «the meaning of life». Such statement is intelligible in the sense that everyone understands its meaning and is in fact confronted with it regularly. (In other words, it is intelligible in the sense that the statement «the conscience of oneself» is intelligible.) A surrogate question is whether all that is intelligible is rationally intelligible. The answer to this P-NP sort of problem is quite obviously no. However, we are yet to prove to which set the statement «the meaning of life» belongs to.
$\S$ I remember thinking in my youth: «the term supernatural makes no sense, for whatever exists is by definition part of nature». I had thus concluded that if God existed it had to be a natural God. Years later I found in Wittgenstein what I call the paradox of the absolute. The paradox can be expressed as follows: the experience of anything absolute, by being an experience, is a fact, and by being a fact is relative. His solution to this paradox is as follows: yes, the paradox makes ethical and religious statements meaningless, but this very meaninglessness is their essence. In other words, the purpose of ethical or spiritual statements is precisely to go beyond the world.
$\S$ An interesting movement of the mind: first, it finds the rigid and simple divisions of philosophy. (For instance, the four-fold division of nature of John Scotus Eriugena.) Then it finds science and scientific inquiry, which induces the feeling that nature cannot be so simply framed. (In science, every element of nature is infinite, in the sense that a complete characterization of it is impossible.) But then it goes full circle and returns to philosophy, for it realizes that it can impose a unifying ordering upon nature.