The most serious mistakes are not being made as a result of wrong answers. The true dangerous thing is asking the wrong question.

To be effective, every knowledge worker, and especially every executive, therefore needs to dispose of time in fairly large chunks. To have small dribs and drabs of time at his disposal will not be sufficient even if the total is an impressive number of hours.

Company cultures are like country cultures. Never try to change one. Try, instead, to work with what you've got.

If you want something new, you have to stop doing something old

The better a man is the more mistakes will he make – for the more new things he will try.

Every first-rate editor I have ever heard of reads, edits and rewrites every word that goes into his publication.... Good editors are not 'permissive'; they do not let their colleagues do 'their thing'; they make sure that everybody does the 'paper's thing.' A good, let alone a great editor is an obsessive autocrat with a whim of iron, who rewrites and rewrites, cuts and slashes, until every piece is exactly the way he thinks it should have been done.

There are companies that are good at improving what they're already doing. There are companies that are good at extending what they're doing. And finally there are companies that are good at innovation. Every large company has to be able to do all three - improve, extend, and innovate - simultaneously.