No one finds fault with defects which are the result of nature.
When we wish to correct with advantage, and to show another that he errs, we must notice from what side he views the matter, for on that side it is usually true, and admit that truth to him, but reveal to him the side on which it is false. He is satisfied with that, for he sees that he was not mistaken, and that he only failed to see all sides. Now, no one is offended at not seeing everything; but one does not like to be mistaken, and that perhaps arises from the fact that man naturally cannot see everything, and that naturally he cannot err in the side he looks at, since the perceptions of our senses are always true.
If God had wanted these two rivers to be navigable, he could have effected it simply by a fiat, and it would be an infringement of the rights of providence to improve that which, for reasons not to be understood, it had wished to remain imperfect.
This statement was made by a group of priests when considering a projected canal in Spain
Understanding the laws of nature does not mean that we are immune to their operations.
But we are mostly what we are, and the turtle stretching toward delicious buds on high does not lighten his carapace by his resolve.
Confined to the use of his own physical power, man is one of the most helpless animals. In proportion to his size and requirements, he is unquestionably very weak and slow. But the superiority of his organism consists precisely in the aptitude of his brain and the fitness of his hands for the contrivance and use of mechanical devices, through which he may take from nature, by artifice, those forces in which he is naturally wanting
We cannot deny the facts of nature, but we should certainly try to improve on them.