Translation of "Forthwith" in Spanish

If thou do well, shalt thou not receive? but if ill, shall not sin forthwith be present at the door? but the lust thereof shall be under thee, and thou shalt have dominion over it.

"¿No es cierto que si obras bien podrás alzarlo? Mas, si no obras bien, a la puerta está el pecado acechando como fiera que te codicia, y a quien tienes que dominar."

- Mathematicians are like French people: whatever you tell them they translate it into their own language and turn it into something totally different.
- Mathematicians are like some Frenchmen: whatever you say to them they translate into their own language, and forthwith it is something entirely different.

Los matemáticos son como algunos franceses: lo que usted diga a ellos se traducen en su propio idioma, y al instante es algo completamente diferente.