All writers on success agree that self-esteem is vitally important in finding success in any area of life or business.
Some people may be a little uncomfortable with attempts to increase self-esteem, confusing it with self-importance. Proper self-esteem is not thinking that I am better than anyone else, it's recognising that I am worthy of good things happening to me, so are you, and so is everyone else.
So what is the connection between self-esteem and loving others? Well, try this experiment. Think of someone whom you regard as an enemy or dislike in some way, even hate. Then think what you would like to say to this person. How do you feel? Stressed? Angry? Your self-esteem has probably taken a dive.
By contrast think of someone whom you love. Speak quietly and lovingly with them. You feel happy and your self-esteem is increased.
Thus my perhaps unconventional recipe for more self-esteem is to have an attitude of love towards everyone we meet with the firm expectation that the encounter, whether personal or business, will result in all parties feeling that they have benefitted from the experience.
Often, when we meet someone for the first time, our initial reaction may be heavily influenced by unconscious memories of someone from our past who has some similarity of appearance, voice, or bearing to our new acquaintance. This is a further reason to make a conscious choice to have only loving thoughts for the person we have just met, rather than to allow any irrelevant negative experience from the past to interfere.
Of course in a business situation I am not suggesting that you should give up all due diligence, unless you happen to be Warren Buffett, whose highly developed skill in assessing businesses and their leaders means that he is often able to dispense with the due diligence that lesser mortals would be wise to retain.