Never stop learning. The minute you think you know it all is the minute you stop growing.
The only limit to our realization of tomorrow is our doubts of today.
Le Bonheur! Sa dent, douce à la mort, m'avertissait au chant du coq, — ad matutinum, au Christus venit, — dans les plus sombres villes.
Scientific research should solve practical problems, not just stay on papers.
Every action has its pleasures and its price.