Never complain and never explain.
By failing to prepare, you are preparing to fail.
Either you run the day or the day runs you.
After a storm comes a calm.
Know or listen to those who know.
I can, therefore I am.
Things do not happen. Things are made to happen.
The dog that trots about finds a bone.
Without hard work, nothing grows but weeds.
To know oneself, one should assert oneself.
All science is either physics or stamp collecting.