You can quit

I am so clever that sometimes I don't

I am so clever that sometimes I don't understand a single word of what I am saying.”

When your legs are tired

When your legs are tired, walk with your heart.

[…] e nas noites solitárias do meu eu, saio pra dançar salsa com a minha confusão

Pain is never permanent

Pain is never permanent.

If you get tired learn how to rest

If you get tired learn how to rest, not to quit.

Be positive

Be positive, patient and persistent.