Tolerance not only means tolerating, it also encompasses attempts to comprehend the origins of different views, persuasions, ideologies, and very often also irrational interests and inclinations. […] Tolerance requires understanding of human weaknesses, motives, irrationalism, failures, “bad days,” unreasonable longing, pluses and minuses of mind, will, and character.

Mieczyslaw Maneli
Mieczysław Maneli (1922–1994) Polish lawyer, diplomat, jurist, academic
Freedom and Tolerance (1984)
    (Source)