One can acquire certainty only by amputating inquiry.
The brain happens to be a meat machine.
Will robots inherit the earth? Yes, but they will be our children.
We turn to quantities when we can't compare the qualities of things.
Logic doesn't apply to the real world.
Common sense is not a simple thing. Instead, it is an immense society of hard-earned practical ideas - of multitudes of life-learned rules and exceptions, dispositions and tendencies, balances and checks.