The following six sentences come from a paragraph. The first and the last sentences are given. Choose the order in which the four sentences (PQRS) should appear to complete the paragraph.
S1 : Unlike many modern thinkers, Tagore had no blueprint for the world's salvation.
S6 : As a poet he will always delight, as a singer he will always enchant, as a teacher he will always enlighten.
P : His thought will therefore never be out of date.
Q : He merely emphasised certain basic truths which men ignore only at their peril.
R : He believed in no particular 'ism'.
S : He was what Gandhiji rightly termed the Great Sentinel.
The proper sequence should be: