I can, therefore I am.
Know or listen to those who know.
If you think you can do it, you can.
Be kind whenever possible. It is always possible.
To know oneself, one should assert oneself.
If you've got a talent, protect it.
Always desire to learn something useful.
The wise does at once what the fool does at last.
Either you run the day or the day runs you.
It's always too early to quit.
You will also allow me to thank the Academy for inviting me to lecture in Stockholm, for its hospitality, and for the opportunity afforded me for admiring the charm of your people and the beauty of your country.