Nowadays, during the education reform and the establishment of market relations, it remains important to preserve Ukrainian culture, the nation and its spiritual rebirth. The human conscience, in particular the teacher's conscience, is to become the basis for the implementation of these important issues. It is Important in the education of youth was, is and remains a unique figure of a teacher, which combines two powerful forces – intelligence and conscience. If the word "conscience" will be studied in the morphological structure, it will be noticed, that it has the root of "news", which means – to know, to get knowledge, to rely on its intellectual development and mind. Conscience – the main teacher's value, his/her noble quality, which combines honor, intellect, dignity, kindness, justice, decency, education of the younger generation. The teacher pays the tremendous job to develop these qualities in the students so that they become reliable, solid and steady their ethical foundation in the mature years. It is not without purpose people say, that in the young age people find or don't find their main qualities and basic values; in the mature age, they develop these qualities or don't develop, or maybe they lose them at all; in the old age they rely on their experience and acquired values throughout life, or suffer from a reproach of conscience without having an ethical support. This article deals with main moral principles in the process of assessing the students' knowledge level, which are inherent in the teacher's personality, his/her scientific views and beliefs, respect and warmth in the formation of students' humanity as a unique personality; the teacher's conscience, which opposes immoral phenomena in society and inspires students for good deeds, highlights the quality of their professional self-improvement, in particular thorough mastering of educational subjects, the deep knowledge of the nature mysteries; the student's conscience is considered; the ideals of the Goodness, the Beautiful and the Justice in each person's life are analyzed.