Have you never wanted to do anything that was dangerous? Where should we be if nobody tried to find out what lies beyond? You never wanted to look beyond the clouds and the stars, or to know what causes the trees to bud, and what changes a darkness into light? But if you talk like that, people call you crazy. Well, if I could discover just one of these things—what eternity is, for example—I wouldn't care if they did think I was crazy.

Frankenstein, trying to explain to his fiancee why he experiments the way he does - Frankenstein (1931)