The life of the law has not been logic; it has been experience. - Oliver Wendell Holmes

Remember, my friend, that every good costs something. Don’t forget that to have anything means to go without something else. Even to be a person, to be this means to be not that.

The joy of life is living, is to put out all one's powers as far as they will go; that the measure of power is obstacle overcome; to ride boldly at what is in front of you, be it fence or enemy; to pray, not for comfort, but for combat; to keep the soldier's faith against the doubts of civil life, more besetting and harder to overcome than all the misgivings of the battle-field, and to remember that duty is not to be proved in the evil day, but then to be obeyed unquestioning; to love glory than the temptations of wallowing ease, but to know that one's final judge and only rival is oneself: with all our failures in act and thought, these things we learned from noble enemies in Virginia or Georgia or on the Mississippi, thirty years ago; these things we believe to be true.

The general rule, at least, is that while property may be regulated to a certain extent, if regulation goes too far it will be recognized as a taking.