He that wrestles with us strengthens our nerves, and sharpens our skill. Our antagonist is our helper. This amicable conflict with difficulty helps us to an intimate acquaintance with our object, and compels us to consider it in all its relations. It will not suffer us to be superficial. – Edmund Burke
But what is liberty without wisdom, and without virtue? It is the greatest of all possible evils for it is folly, vice, and madness, without tuition or restraint. – Edmund Burke

