Never complain and never explain.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
To know oneself, one should assert oneself.
I can, therefore I am.
Be gentle to all and stern with yourself.
Begin to be now what you will be hereafter.
Be thine own palace, or the world's thy jail.
If you can dream it, you can do it.
Always desire to learn something useful.
My experiences have taught me a lot and I'm happy with my learnings, if not with what I went through to learn.