Joana C. Xavier, Ph.D. is a scientist, engineer, and author of dozens of scientific publications on fundamental properties of life, the origin of life and network biology, systems biology and computational biology.

Joana is currently based in Portugal. She thrives to create new bonds within and between concepts, human minds, and organizations.


The more clearly we can focus our attention on the wonders and realities of the universe about us, the less taste we shall have for destruction.


The true causes of natural effects and of the phenomena we observe are often so far from the principles on which we can rely and the experiments we can make that one is obliged to be content with probable reasons to explain them.

—ÉMILIE DU CHÂTELET, Institutions De Physique (1740)

It is by avoiding the rapid decay into the inert state of ‘equilibrium’ that an organism appears so enigmatic; […]. How does the living organism avoid decay? The obvious answer is: By eating, drinking, breathing and […] assimilating. The technical term is metabolism. The Greek word means change or exchange.

—ERWIN SCHRÖDINGER, What is Life? (1944)