Expect problems and eat them for breakfast.
The dog that trots about finds a bone.
I can, therefore I am.
By failing to prepare, you are preparing to fail.
To know oneself, one should assert oneself.
Who seeks shall find.
Problems are not stop signs, they are guidelines.
Never complain and never explain.
If you're going through hell, keep going.
Always desire to learn something useful.
If you decide to design your own language, there are thousands of sort of amateur language designer pitfalls.