Aristotle
Aristotle Quotes about Nature
Nature creates nothing without a purpose.
Nature, as we say, does nothing without some purpose; and for the purpose of making man a political animal she has endowed him alone among the animals with the power of reasoned speech.
All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion, desire.
I say that habit's but a long practice, friend, and this becomes men's nature in the end.
The investigation of the truth is in one way hard, in another easy. An indication of this is found in the fact that no one is able to attain the truth adequately, while, on the other hand, no one fails entirely, but everyone says something true about the nature of all things, and while individually they contribute little or nothing to the truth, by the union of all a considerable amount is amassed.