Wherever you are - be all there.
To know oneself, one should assert oneself.
Begin to be now what you will be hereafter.
Problems are not stop signs, they are guidelines.
Expect problems and eat them for breakfast.
Well done is better than well said.
What you do today can improve all your tomorrows.
You never know what motivates you.
Know or listen to those who know.
Be gentle to all and stern with yourself.
A good teacher must be able to put himself in the place of those who find learning hard.