The following sentences form a paragraph. The sentences are numbered as P, Q, R, S and T. These five parts are not given in proper order. Rearrange the sentences to form a coherent paragraph and then answer the questions that follow.

P- According to his philosophy, political life should be governed by truth, morality, and self-purification.

Q- He also prescribed that the country should concern itself with the morals of its leaders. 

R- He propagated that politics without ethics and principles were not desirable.

S- Gandhi's politics were bound up with truth and non-violence.

T- Mahatma Gandhi stated the importance of ethics in politics.