To know oneself, one should assert oneself.
The dog that trots about finds a bone.
Either you run the day or the day runs you.
Always desire to learn something useful.
Expect problems and eat them for breakfast.
Wherever you are - be all there.
Well done is better than well said.
If you're going through hell, keep going.
After a storm comes a calm.
To be a good loser is to learn how to win.
The frontiers of knowledge in the various fields of our subject are expanding at such a rate that, work as hard as one can, one finds oneself further and further away from an understanding of the whole.