Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science.
In the struggle for survival, the fittest win out at the expense of their rivals because they succeed in adapting themselves best [...]
It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.
The very essence of instinct is that it’s followed independently of reason.
If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.
It has been [...]
Man tends to increase at a greater rate than his means of subsistence.
My mind seems to have become a kind of machine for grinding general laws out of large collections of facts.
On the ordinary view of each species having been independently created, we gain no scientific explanation.
The highest possible stage in moral culture is when [...]
A man who dares to waste one hour of time has not discovered the value of life.
A man’s friendships are one of the best measures of his worth.
A scientific man ought to have no wishes, no affections, – a mere heart of stone.
Animals, whom we have made our slaves, we do not like to consider [...]