你不能害怕失败。这是你成功的唯一途径。
我努力工作，表现出色，我会享受自己。我不会让你限制我。
在没有生命力的帮助下合成尿素是一个极其重要的事实。
The artist must be in his work as God is in creation, invisible and all-powerful; one must sense him everywhere but never see him.
Sleep is good, death is better; but of course, the best thing would to have never been born at all.
Art is contemplation. It is the pleasure of the mind which searches into nature and which there divines the spirit of which nature herself is animated.