I can, therefore I am.
It's always too early to quit.
Always desire to learn something useful.
Quality is not an act, it is a habit.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
The dog that trots about finds a bone.
By failing to prepare, you are preparing to fail.
Be kind whenever possible. It is always possible.
If you can dream it, you can do it.
Though I had success in my research both when I was mad and when I was not, eventually I felt that my work would be better respected if I thought and acted like a 'normal' person.