Escribir es como desnudar el alma frente al espejo, sin miedo al reflejo que devuelve.

The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

心理学唯一有效的数据是可观察的行为。