Mere chance ... alone would ...

Mere chance ... alone would never account for so habitual and large an amount of difference as that between varieties of the same species.
Mere chance ... alone would never account for so habitual and large an amount of difference as that between varieties of the same species.

More phrases

There is an ocean of endless opportunities, and there are so many things that one can do. I'm so fortunate that I've grown up with this sort of a philosophy and mentality.
 Hafez Nazeri
The two worst strategic mistakes to make are acting prematurely and letting an opportunity slip.
A warrior knows that he is only a man. His only regret is that his life is so short that he can't grab onto all the things he would like to. But for him, this is not an issue; it's only a pity.
The Warrior lives a life full of adventure, living on the edge of opportunity. Life on the edge keeps him in a space of heightened awareness and totally in the moment; therefore no matter what comes his way he is always prepared.
 James Arthur Ray
It was a good opportunity for me to wear a NBA jersey. The Golden State Warriors gave me an opportunity to come in and play for them. I was very appreciative of that.
 John Starks

Quotes from the same author

The highest stage in moral culture at which we can arrive is when we recognize that we ought to control our thoughts.
I have been speculating last night what makes a man a discoverer of undiscovered things. As far as I can conjecture the art consists in habitually searching for the causes and meaning of everything which occurs.
About thirty years ago there was much talk that geologists ought only to observe and not theorise; and I well remember some one saying that at this rate a man might as well go into a gravel-pit and count the pebbles and describe the colours. How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any service!
I cannot anyhow be contented to view this wonderful universe, and especially the nature of man, and to conclude that everything is the result of brute force. I am inclined to look at everything as resulting from designed laws, with the details, whether good or bad, left to the working out of what we call chance. Not that this notion at all satisfies me. I feel most deeply that the whole subject is too profound for the human intellect. A dog might as well speculate on the mind of Newton. Let each man hope and believe what he can.
To suppose that the eye could have been formed by natural selection, seems, I freely confess, absurd in the highest possible degree