Nothing can have value without being an object of utility.

I think when smallpox was eliminated, the whole world got pretty excited about that because it's just such a dramatic success.

Every person, all the events of your life are there because you have drawn them there. What you choose to do with them is up to you.

Men become accustomed to poison by degrees.

As the rest of the world is walking out the door, your best friends are the ones walking in.