Penn Jillette, Magician

If every trace of any single religion died out and nothing were passed on, it would never be created exactly that way again.
There might be some other nonsense in its place, but not that exact nonsense.
If all of science were wiped out, it would still be true and someone would find a way to figure it all out again.

The Book Bench: Is Self-Knowledge Overrated? : The New Yorker

it turns out that human reason is rather feeble, easily overwhelmed by ancient instincts and lazy biases
via newyorker.com on Daniel Kahneman, a Nobel Prize-winning psychologist.
It’s impossible to overstate the influence of Kahneman and Tversky. Like Darwin, they helped to dismantle a longstanding myth of human exceptionalism. Although we’d always seen ourselves as rational creatures—this was our Promethean gift—it turns out that human reason is rather feeble, easily overwhelmed by ancient instincts and lazy biases. The mind is a deeply flawed machine.

Steve Jobs

When you grow up, you tend to get told that the world is the way it is, and your life is just to live your life inside the world. Try not to bash into the walls too much. Try to have a nice family life. Have fun, save a little money. That's a very limited life.
Life can be much broader, once you discover one simple fact, and that is everything around that you call life was made up by people who were no smarter than you. And you can change it. You can influence it. You can build your own things that other people can use. Once you learn that, you'll never be the same again.
From a 1994 interview that was not broadcast, shown in the 2011 PBS documentary "One Last Thing".