Translation of "Astounding" in Spanish

Astounding, isn't it?

Sorprendente, ¿verdad?

And at times astounding stupidity.

y a veces a la estupidez asombrosa.

There are equally astounding range of records

Hay igualmente asombrosos registros

This was known as the Benz Patent-Motorwagen and was able to reach the astounding speed

Esto fue conocido como la Patente-Motorwagen Benz, y pudo alcanzar la asombrosa velocidad

If you pretend to be good, the world takes you very seriously. If you pretend to be bad, it doesn't. Such is the astounding stupidity of optimism.

Si finges ser bueno, el mundo te toma muy seriamente. Si finges ser malo, no lo hace. Esa es la pasmosa estupidez del optimismo.