My daughter said "Many are hypocrites but many do not realised that they are hypocrites" Why? may be they need to learn science because science teach us not to lie and not to pretend. Science tell the truth base on facts.

hyp·o·crite

/ˈhɪpəkrɪt/ Show Spelled [hip-uh-krit]   

noun

1.

a person who pretends to have virtues, moral or religious beliefs, principles, etc., that he or she does not actually possess, especially a person whose actions belie stated beliefs.

2.

a person who feigns some desirable or publicly approved attitude, especially one whose private life, opinions, or statements belie his or her public statements.

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Origin:
1175–1225; Middle English ipocrite  < Old French  < Late Latin hypocrita  < Greek hypokritḗs  a stage actor, hence one who pretends to be what he is not, equivalent to hypokrī́ ( nesthai ) (see hypocrisy) + -tēs  agent suffix

Related forms

hyp·o·crit·i·cal, adjective

su·per·hyp·o·crite, noun

Synonyms
deceiver, dissembler, pretender, pharisee.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.