Ed and nancy sign a written contract. their contract provides that any amendment of the contract must be in writing and signed by both parties. later, ed and nancy agree to amend their contract. they both sign a rider that indicates the changes they've agreed to make to their original contract. is this sufficient to satisfy the modification provision in the parties' contract?

it is a part of john locke's natural rights popular during the age of enlightenment that people had inalienable rights to life, liberty and property. this was reflected by thomas jefferson in his declaration of independence as rights to life,liberty and the pursuit of happiness.

another line in the declaration of independence is that people have certain rights just because they are human. humans are capable of obeying the three natural rights john locke mentioned making them governable by these laws and therefore entitled to these rights as well.