The biggest room in the world is the room for improvement.
The individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.
人类智力的发展都应该主要归功于欲望，而欲望能否被普遍满足要依靠智力的发展。
Innovation in forestry means balancing technology with tradition to create solutions that last.