Sustainability isn't an option - it's our responsibility to future generations.
The only person who is educated is the one who has learned how to learn and change.
"I always try to be honest with myself and with others."
The self is not something ready-made, but something in continuous formation through choice of action.
If we don’t do something now, the world our children inherit will be much poorer than the one we were given.
"In the end, we will remember not the words of our enemies, but the silence of our friends."