Business Insider India has updated its Privacy and Cookie policy. We use cookies to ensure that we give you the better experience on our website. If you continue without changing your settings, we\'ll assume that you are happy to receive all cookies on the Business Insider India website. However, you can change your cookie setting at any time by clicking on our Cookie Policy at any time. You can also see our Privacy Policy.
Blackstone CEO Stephen Schwarzman said his firm's rough early days taught him why every entrepreneur should be prepared to be in 'psychological pain in a way you haven't before'