It's always too early to quit.
The secret of getting ahead is getting started.
Either you run the day or the day runs you.
Be gentle to all and stern with yourself.
If you think you can do it, you can.
Quality is not an act, it is a habit.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
Only the educated are free.
By failing to prepare, you are preparing to fail.
The attitude of physiological psychology to sensations and feelings, considered as psychical elements, is, naturally, the attitude of psychology at large.