This refers to the unconditional acceptance of all kinds of behaviour exhibited by a person irrespective of one’s personal like or dislike of such behaviour. It is an approach towards clients that is commonly recommended in the practice of psychotherapy. It involves dealing with a person in need of help in a helpful and professional manner regardless of the therapist’s personal preferences. Psychotherapists, for instance, are often encouraged to maintain a positive attitude towards their patients even if they do not agree with them. The idea was proposed by American psychologist Carl Rogers in his 1951 book Client-Centered Therapy.