Whosoever desires constant success must change his conduct with the times.

There is nothing more difficult to take in hand, more perilous to conduct, or more uncertain in its success, than to take the lead in the introduction of a new order of things.

There is nothing more difficult to carry out, nor more doubtful of success, nor more dangerous to handle, that to institute a new order of things

To understand the nature of the people one must be a prince, and to understand the nature of the prince, one must be of the people.

Men are so simple and yield so readily to the desires of the moment that he who will trick will always find another who will suffer to be tricked.

He who wishes to be obeyed must know how to command.