S1: We do not know what to do with our knowledge.
S6: In the course of time they may rule over us altogether.
P : For example, we are unable to manage our machines.
Q : We already find it difficult to do without machines.
R : Machines should be fed properly and waited upon attentively; otherwise they refuse to work or cause destruction.
S : Science has given us superhuman powers, which we do not use properly.
The proper sequence should be

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