The truth is a mirror, reflecting who we really are.
La verdadera patria del hombre es la infancia.
The key to success in research is to focus on fundamental problems that have long-term impact.
When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.
"The past is not a place but a condition."
The beauty of chemistry lies in its ability to explain the world at the molecular level.