Well said @elprofe25!
The word "certainty" implies absolute security, without any doubt of achieving what is expected and "conviction", is to have a total conviction of achieving what is wanted although all the circumstances apparently are against achieving it.
Gracias @steemchurch por tu comentario , siempre muy acertado y lleno de mucha sabiduría. Gracias por tus palabras que nos motivan a seguir adelante a pesar de que los vientos sean contrarios. Paz y bendición