Observe always that everything is the result of change, and get used to thinking that there is nothing Nature loves so well as to change existing forms and make new ones like them.
by Marcus Aurelius

Do not feel certain of anything
by Bertand Russell

Never change a winning game; always change a losing one.
by Bill Tilden

Let everyone try and find that as a result of daily prayer he adds something new to his life, something with which nothing can be compared.
by Mohandas K. Gandhi