The desire for recognition, the thymotic part of the soul, is the most fundamentally human part of the human personality.

Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be, because of the obscurity of the subject, and the brevity of human life.

Believe in yourself and all that you are.

释义：人的行为必须与自然规律相协调，才能取得成功。这句话强调人与自然的和谐关系。

唯一不变的是变化，持续的变化，不可避免的变化，这是当今社会的主导因素。任何明智的决策都必须考虑到世界现在的样子，以及世界未来的样子。

Coal will remain part of the energy mix, but its role must be redefined for a cleaner future.