you have to work hard to achieve success
no hay ganancia sin dolor
"He practices every day because he believes no pain, no gain."
"él practica todos los días porque cree que no pain, no gain."
To be very sure or confident about something.
to control something or someone secretly
someone appears active but is not thinking clearly
to encourage someone to stay hopeful and not give up
to enjoy something very much
to make someone feel happier