Un aphorisme de Arthur C. Clarke:
If an elderly but distinguished scientist says that something is possible he is almost certainly right, but if he says that it is impossible he is very probably wrong.
Traduction automatique:
Si un scientifique éminent, mais les personnes âgées dit que quelque chose est possible, il est presque certainement raison, mais si il dit que c’est impossible, il a très probablement tort.