Think of it this way.

You have a podium connected to the wing. Stand on it. You are not going to have wind blowing on you. With no wind, there is no lift on the wings.

We are assuming the air is calm around the plane, right?
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"Nature has constituted utility to man the standard and test of virtue. Men living in different countries, under different circumstances, different habits and regimens, may have different utilities; the same act, therefore, may be useful and consequently virtuous in one country which is injurious and vicious in another differently circumstanced" - Thomas Jefferson, moral relativist