Generally speaking, idleness is regarded as______. If we cannot free ourselves, we can at least______.

A．To believe in the instinct.
B．To deny the instinct of science.
C．To deny the rationality of science.
D．To deny the rationality of the instinct.

A．Joining the two spheres by cables.
B．Joining the parts by nerves.
C．Joining the two spheres by logic.
D．Joining the functions of the two parts.