Be men, or be more than men. Be steady to your purposes and firm as a rock. This ice is not made of such stuff as your hearts may be; it is mutable and cannot withstand you if you say that it shall not.
Sometimes I would write this quote in marker on my leg to make it through a day as a teacher. Whenever you start to feel doubt (and if you are human, you will) remember that the physical world is only the tip of the iceberg. You are made of more (and you have more in you) than will ever fit into a job description or stereotype. So rock it.