Behavior is determined by the current stimulus situation and past reinforcement history.
The worse a situation becomes, the less it takes to turn it around, the bigger the upside.
La verdadera patria del poeta es su lengua.
Your voice is your power. Never let anyone silence you.
我是一个不断进步的人，我对此很坦然。
The choice for mankind lies between freedom and happiness and for the great bulk of mankind, happiness is better.
El lenguaje es la casa del ser, y en sus palabras habitamos.