Know or listen to those who know.
Quality is not an act, it is a habit.
Be thine own palace, or the world's thy jail.
Either you run the day or the day runs you.
Wherever you are - be all there.
To know oneself, one should assert oneself.
Do not weep do not wax indignant. Understand.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
By failing to prepare, you are preparing to fail.
Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic, and consider it an arid science. In reality, however, it is a science which requires a great amount of imagination.