Expect problems and eat them for breakfast.
Problems are not stop signs, they are guidelines.
After a storm comes a calm.
If you're going through hell, keep going.
It's always too early to quit.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
Be thine own palace, or the world's thy jail.
By failing to prepare, you are preparing to fail.
I can, therefore I am.
Without feeling abashed by my ignorance, I confess that I am absolutely unable to say. In the absence of an appearance of learning, my answer has at least one merit, that of perfect sincerity.