To know oneself, one should assert oneself.
Without hard work, nothing grows but weeds.
The secret of getting ahead is getting started.
Leap, and the net will appear.
If you think you can do it, you can.
Be gentle to all and stern with yourself.
Go for it now. The future is promised to no one.
Well done is better than well said.
Problems are not stop signs, they are guidelines.
It's always too early to quit.
In my teaching, I enjoyed creating models to clearly communicate my thoughts.