If I’m asking what kind of ‘return’ I should be expecting on the sacrifices I’m making, I have in that question revealed the need to ‘return’ that question to wherever I found it and have the word ‘return’ edited out of it.

Knowledge of Nature is an account at bank, where each dividend is added to the principal and the interest is ever compounded; and hence it is that human progress, founded on natural knowledge, advances with ever increasing speed.