Never complain and never explain.
Expect problems and eat them for breakfast.
After a storm comes a calm.
Go for it now. The future is promised to no one.
If you're going through hell, keep going.
Things do not happen. Things are made to happen.
Well done is better than well said.
Always desire to learn something useful.
To know oneself, one should assert oneself.
Leap, and the net will appear.
I love the wry motto of the Paleontological Society, meant both literally and figuratively, for hammers are the main tool of our trade: Frango ut patefaciam - I break in order to reveal.