Philosophy

Wise words are like arrows flung at your forehead.
What do you do?
Why, you duck of course.

Steven Erikson / House of Chains

Life can only be understood backwards; but it must be lived forwards.

Søren Kierkegaard

Reason always existed, but not in a reasonable form.

Karl Marx

Science

I think it's much more interesting to live not knowing than to have answers which might be wrong.

I have approximate answers and possible beliefs and different degrees of uncertainty about different things, but I am not absolutely sure of anything and there are many things I don't know anything about, such as whether it means anything to ask why we're here.

I don't have to know an answer. I don't feel frightened not knowing things, by being lost in a mysterious universe without any purpose, which is the way it really is as far as I can tell.

Richard Feynman