The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that 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.

All things are possible until they are proved impossible and even the impossible may only be so, as of now.

现在已经清楚，杂种形成的种子具有两个分化性状中的一个或另一个。