It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change. Charles Darwin
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence. Helen Keller
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts. Charles Darwin
In the long history of humankind, those who learned to collaborate and improvise most effectively have prevailed. Charles Darwin
All truths are easy to understand once they are discovered; the point is to discover them. Galileo Galilei
