普通和非凡的区别在于那一点点额外的努力。
The difference between ordinary and extraordinary is that little extra.
I am convinced that the substitution of a simple tax on the rent of land for the complicated taxes which at present oppress industry would be advantageous to all classes.
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.