"Zijn derde wet gaat over actie en reactie."
Translation:His third law is about action and reaction.
"action and reaction" in this sense sounds very clumsy and 'foreign'. I think it more natural to say "cause and effect"
As described by the third of Newton's laws of motion of classical mechanics, all forces occur in pairs such that if one object exerts a force on another object, then the second object exerts an equal and opposite reaction force on the first. The third law is also more generally stated as: "To every action there is always opposed an equal reaction: or the mutual actions of two bodies upon each other are always equal, and directed to contrary parts."