Language is our fundamental characteristic. The limits of our language are the limits of our mind and thought, hence of our world. Since language is the internal part of our existence it can be externalized and materialized through our behavior. These internal and external dimensions together with the environment in which they co-exist make up the complex system we call human nature. This perspective of language as identity, behavior and environment-framing phenomenon is what makes it essential for us to view it as something intimate and spontaneous, preserved as cultural heritage and nurtured as our future human resource. This paper focuses on the interaction between human elements (language and behavior) and the natural environment and to which extent the former might affect the latter—endangering or preserving it. One of the possible ways to understand how language has impinged on the environment through behavior is to study phraseological units, in particular proverbs, as they carry conceptual information mirroring people’s minds in terms of their perception of the surrounding world.This paper argues that we need to harmonize individual and global consciousness and to preserve language diversity in order to protect the environment. Proverbs were chosen for two reasons: first, because of their obvious relation to language diversity. Simplifying language and turning it into a simple labeling of the world around us (by using it in a ‘global’ way) is as important a threat for human nature system as the biodiversity loss is; second, because they are representative of this conceptual framework.