Doubt chains us to our own mistakes and contorts everything that we do. Doubt is a poison that pollutes every thought that rises around it. Doubt ruins communications between people as it demeans both the self and others at once. The way to overcome doubt, as with all defilement, is to assert its opposite, positive quality. When we find ourselves becoming suspicious or doubtful, we should turn our minds towards trust and a firm belief in the truth.
— Master Hsing Yun, Being Good