It is now clear that the hybrids form seed which have one or other of the differentiating characters, and of these one-half develop again the hybrid form, while the other half yield plants which remain constant and receive the dominant or the recessive characters in equal numbers.
现在很清楚，杂种形成的种子具有一个或另一个分化特征，其中一半再次发育成杂种形式，而另一半产生的植物保持恒定，并以相等的数量接受显性或隐性特征。
"We are all the heroes of our own stories."
气候变化要求我们重新思考传统耕作方式。
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
The only limit to our realization of tomorrow is our doubts of today.