He who is in love with himself has at least this advantage — he won't encounter many rivals.

If eighty percent of your sales come from twenty percent of all of your items, just carry those twenty percent.

If we do what is necessary, all the odds are in our favor.

In life, as in chess, forethought wins.

It is a great advantage for a system of philosophy to be substantially true.

Never build your emotional life on the weaknesses of others.

The two big advantages I had at birth were to have been born wise and to have been born in poverty.