I've begun reading The Phaedo, wherein Socrates argues against the case of suicide. He begins by assuming that since we as men are possessions of the gods, they would be angered were one of their possessions to kill themselves without them having given the possession any sign that they wished it to die, and that having the ability to do so, they would inflict punishment upon the possession as a result.
And so, presupposing that it would be just to inflict punishment upon the possessions i.e men, i asked myself whether the loss of time to acquire knowledge, provided by being alive, would not be enough, as I have thus far more or less believed that when having faced death we must contend with the knowledge attained throughout our life, and not more. And so when Socrates only presents the issue of angering the gods in committing suicide, and not the loss of capacity to attain knowledge, something which he holds essential, I arrived at the title question:
Is it possible to discover, develop and ultimately gain new knowledge after death?