The supreme quality for leadership is unquestionably integrity. Without it, no real success is possible, no matter whether it is on a section gang, a football field, in an army, or in an office.

Dwight D. Eisenhower
Profession: President
Nationality: American
Some suggestions for you :
You do not lead by hitting people over the head – that's assault, not leadership.
I thought it completely absurd to mention my name in the same breath as the presidency.
The world moves, and ideas that were once good are not always good.
Politics is a profession; a serious, complicated and, in its true sense, a noble one.
May we never confuse honest dissent with disloyal subversion.
The purpose is clear. It is safety with solvency. The country is entitled to both.