Be thine own palace, or the world's thy jail.
You never know what motivates you.
Be kind whenever possible. It is always possible.
If you've got a talent, protect it.
The wise does at once what the fool does at last.
Only the educated are free.
Be gentle to all and stern with yourself.
It's always too early to quit.
Well done is better than well said.
I can, therefore I am.
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.