He leans on me like I'm the only person in the world.
"Natural theology" has no value save where it leans on faith.
Yet on the whole Aristotle leans to a teleological theory of evolution, which he interprets dualistually by means of certain metaphysical distinctions.
Its upper end forms the acrocoracoid process, against the inner surface of which leans the proximal portion of the clavicle.
As for the influence he exercised on posterity, it is enough to say that Luca Pacioli, about 1500, in his celebrated Summa, leans so exclusively to Leonardo's works (at that time known in manuscript only) that he frankly acknowledges his dependence on them, and states that wherever no other author is quoted all belongs to Leonardus Pisanus.
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