These are my notes from Managing Oneself by Peter F. Drucker. Drucker was an Austrian-born American management consultant, educator, and author, whose writings contributed to the philosophical and practical foundations of the modern business corporation.

First and foremost, concentrate on your strengths. Put yourself where your strengths can produce results. Second, work on improving your strengths. Analysis will rapidly show where you need to improve skills or acquire new ones. It will also show the gaps in your knowledge — and those can usually be filled

Third, discover where your intellectual arrogance is disabling ignorance and overcome it

Few listeners can be made, or can make themselves, into competent readers — and vice versa. The listener who tries to be a reader will, therefore, suffer the fate of Lyndon Johnson, whereas the reader who tries to be a listener will suffer the fate of Dwight Eisenhower. They will not perform or achieve. Try to figure who you are.

The explanation for above is that writers do not, as a rule, learn by listening and reading. They learn by writing. Because schools do not allow them to learn this way, they get poor grades. There are people, like Churchill, who learn by writing. Some people learn by taking copious notes. Beethoven, for example, left behind an enormous number of sketchbooks, yet he said he never actually looked at them when he composed. Asked why he kept them, he is reported to have replied, “If I don’t write it down immediately, I forget it right away. If I put it into a sketchbook, I never forget it and I never have to look it up again.” Some people learn by doing. Others learn by hearing themselves talk.

A chief executive (who Drucker knew) who converted a small and mediocre family business into the leading company in its industry was one of those people who learn by talking. He was in the habit of calling his entire senior staff into his office once a week and then talking at them for two or three hours.

The same holds true for all your coworkers. Each works his or her way, not your way. And each is entitled to work in his or her way. What matters is whether they perform and what their values are. As for how they perform — each is likely to do it differently. The first secret of effectiveness is to understand the people you work with and depend on so that you can make use of their strengths, their ways of working, and their values. Working relationships are as much based on the people as they are on the work

The second part of relationship responsibility is taking responsibility for communication. Whenever Drucker, or any other consultant, start to work with an organisation, the first thing he hears about are all the personality conflicts. Most of these arise from the fact that people do not know what other people are doing and how they do their work, or what contribution the other people are concentrating on and what results they expect. And the reason they do not know is that they have not asked and therefore have not been told.

There are three ways to develop a second career.

The first is actually to start one.

The second way to prepare for the second half of your life is to develop a parallel career.

Finally, there are the social entrepreneurs. These are usually people who have been very successful in their first careers. They love their work, but it no longer challenges them. In many cases they keep on doing what they have been doing all along but spend less and less of their time on it. They also start another activity, usually a nonprofit.

To summarise:

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