Without hard work, nothing grows but weeds.
By failing to prepare, you are preparing to fail.
If you're going through hell, keep going.
If you can dream it, you can do it.
It's always too early to quit.
You never know what motivates you.
Things do not happen. Things are made to happen.
Always desire to learn something useful.
To know oneself, one should assert oneself.
Quality is not an act, it is a habit.
In my teaching, I enjoyed creating models to clearly communicate my thoughts.