Quality is not an act, it is a habit.
It's always too early to quit.
What you do today can improve all your tomorrows.
The wise does at once what the fool does at last.
I can, therefore I am.
Problems are not stop signs, they are guidelines.
To know oneself, one should assert oneself.
Either you run the day or the day runs you.
Begin to be now what you will be hereafter.
Expect problems and eat them for breakfast.
One reason the human race has such a low opinion of itself is that it gets so much of its wisdom from writers.