They will need to be soaked and/or cooked for a longer amount of time than is on the directions if they are older than 2 years from the best by date. However, dried beans do not loose any of their nutritional value with age, so their shelf life is classified as indefinite.
Let's talk about the law of action and reaction, this is also known as Newton's third law and this simply states that for every action there's an equal and opposite reaction. So if I apply a force onto an object there's a reaction force that's applied back on the force that's been applied to it okay.
Forces come in pairs! Whenever an object exerts a force on another object, the other object exerts the same amount of force back on the first, but in the opposite direction. This is known as Newton's 3rd Law of Motion. It is popularly known as the law of action-reaction.