It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.

The most powerful natural species are those that adapt to environmental change without losing their fundamental identity which gives them their competitive advantage.

In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed

Man can live about forty days without food, about three days without water, about eight minutes without air, but only for one second without hope

The expression often used by Mr. Herbert Spencer of the Survival of the Fittest is more accurate, and is sometimes equally convenient.

7.4 Billion and counting. The way we view our own importance as a species and our rights to survival, one would think that we are in danger of being extinct.......