Success is not final, failure is not fatal: It is the courage to continue that counts.
Good econometrics is like good carpentry—it's all about using the right tool for the job.
文学是所有艺术中最具颠覆性的,因为它在读者的头脑中秘密运作。
La revolución es como la bicicleta, si no avanzas se cae.