Every successful man must have behind him somewhere tremendous integrity, tremendous sincerity, and that is the cause of his signal success in life. He may not have been perfectly unselfish; yet he was tending towards it. If he had been perfectly unselfish, his would have been as great a success as that of the Buddha or of the Christ. The degree of unselfishness marks the degree of success everywhere.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 5/Notes from Lectures and Discourses/On Karma-Yoga