Name one of the few ones that actually say it.
You forgot about Newton already? He says nothing else in his 3rd law.
From the first 3 google searches:
''Formally stated, Newton's third law is:
For every action, there is an equal and opposite reaction.''
''Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.''
''According to Newton's third law...
For every action there is an equal and opposite re-action.''
http://www.physicsclassroom.com/class/newtlaws/Lesson-4/Newton-s-Third-Law
https://www.khanacademy.org/science/physics/forces-newtons-laws/newtons-laws-of-motion/a/what-is-newtons-third-law
http://teachertech.rice.edu/Participants/louviere/Newton/law3.html
Perhaps I'm blind but where does it say that everything has a cause?
How dense are you? You don't seem to understand that an action that gets a reaction is a cause that has an effect. If I had a nickle for every bit of science 101 I had to remind you of, I'd be very wealthy.
Sure, things that have a cause have also an effect, the part I'm missing is where it says that EVERYTHING (as you claim) has actually a cause, could you make that clear for me?
Answer your own question by finding something that has reached absolute zero.