Read the following group of phrases. The first and the last phrases are numbered 1 and 6, while the rest are numbered P, Q, R and S. Arrange these four phrases in proper order to form a meaningful sentence.

1. The role of modern youth

P.   as they have to not only

Q.   than that of their forefathers

R.   keep the torch of freedom aloft

S.   is far more challenging

6.   but also keep it always lit.