Intelligence is based on how efficient a species became at doing the things they need to survive
English naturalist, geologist and biologist, best known for his contributions to the science of evolution.
A man’s friendships are one of the best measures of his worth
The very essence of instinct is that it's followed independently of reason
A scientific man ought to have no wishes, no affections, - a mere heart of stone
Blushing is the most peculiar and most human of all expressions
I am not apt to follow blindly the lead of other men
We stopped looking for monsters under our bed when we realized that they were inside us
Happiness in intelligent people is the rarest thing I know
Call no man happy till he is dead
We must find time to stop and thank the people who make a difference in our lives
You must never be fearful of what you are doing when it is right
Learn from the mistakes of others. You can never live long enough to make them all yourself
A friend to all is a friend to none
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