Be gentle to all and stern with yourself.
Go for it now. The future is promised to no one.
Always desire to learn something useful.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
If you can dream it, you can do it.
Well done is better than well said.
You never know what motivates you.
If you're going through hell, keep going.
Things do not happen. Things are made to happen.
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.