To know oneself, one should assert oneself.
I can, therefore I am.
Well done is better than well said.
Without hard work, nothing grows but weeds.
Begin to be now what you will be hereafter.
Things do not happen. Things are made to happen.
Quality is not an act, it is a habit.
Be thine own palace, or the world's thy jail.
Be kind whenever possible. It is always possible.
Problems are not stop signs, they are guidelines.
The role of the teacher is to create the conditions for invention rather than provide ready-made knowledge.