John Marshall

If the agency of the mother in forming the character of her children is, in truth, so considerable, as I think it - if she does so much toward making her son what she would wish him to be - how essential is it that she should be fitted for the beneficial performance of these important duties.

The constitution is either a superior paramount law, unchangeable by ordinary means, or it is on a level with ordinary legislative acts, alterable when the legislature shall please to alter it. It is emphatically the province and duty of the judicial department to say what the law is. This is the very essence of judicial duty.