Go for it now. The future is promised to no one.
If you think you can do it, you can.
Well done is better than well said.
Problems are not stop signs, they are guidelines.
If you've got a talent, protect it.
After a storm comes a calm.
If you're going through hell, keep going.
Never complain and never explain.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
Soon I knew the craft of experimental physics was beyond me - it was the sublime quality of patience - patience in accumulating data, patience with recalcitrant equipment - which I sadly lacked.