预见数学未来的真正方法是研究它的历史和现状。
释义：阿那克西米尼可能将气的变化比喻为宇宙的呼吸，象征宇宙在不断地运动和变化中保持生命。
动物健康的未来在于预防，而不仅仅是治疗。
学习的意愿是一种内在动机，其来源和奖励都在于其自身的实践。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.