God may forgive your sins, but your nervous system won't

Whatever you say it is, it isn't

If we consider that all we deal with represents constantly changing sub-microscopic, interrelated processes which are not, and cannot be identical with themselves, the old dictum that everything is identical with itself becomes in [today’s understanding of the universe a principle invariably false to facts

There are two ways to slide easily through life: to believe everything or to doubt everything. Both ways save us from thinking

The map is not the territory