Sir: Asif Ali Zardari objected to the nomination of Nasir Aslam Zahid as caretaker prime minister because he, in the past, played a role against him. Nawaz Sharif, on the other hand, has accepted Najam Sethi who, in the past, was and continues to be against the Sharifs and who apparently nurtures his ‘chirya’ (bird) in the presidency. This is the difference between a politician and a statesman — a politician is buried in personal whims and a statesman has overcome individual lineages. DR GHAYUR AYUB London