I am grateful for what science has already brought to people's lives. My mother had open-heart surgery, and her life was saved. There are no borders … - Zohra Ben Lakhdar Akrout

Be aware of the importance of culture; be open-minded as a scientist and as a person. Seek independence. Understand how important it is to be a responsible citizen. Be of good heart and be confident.

Light is a set of waves through space. So the “messages” are presented as waves. Each atom has its own way to send its message. This is its “spectra”, its own set of waves. So spectroscopy is the common language of atoms. When you know how to read these waves, you understand the language of atoms and molecules.

Spectroscopy is about analyzing bodies according to the spectrum of light emitted or absorbed by matter. What does that mean? Think of the planets, stars, galaxies, which are beyond our reach. – How is it that man is able to get information about them and photograph them