We must not leap to the fatalistic conclusion that we are stuck with the conceptual scheme that we grew up in. We can change it bit by bit, plank by plank, though meanwhile there is nothing to carry us along but the evolving conceptual scheme itself. The philosopher’s task was well compared by Neurath to that of a mariner who must rebuild his ship on the open sea. We can improve our conceptual scheme, our philosophy, bit by bit, while continuing to depend on it for support; but we cannot detach ourselves from it and compare it objectively with an unconceptualized reality.

p.78-79, W. V. O. Quine, ‘Identity, Ostension, and Hypostasis’ (1950).