Noun
The act of investigating; the process of inquiring into or following up; research; study; inquiry, esp. patient or thorough inquiry or examination; as, the investigations of the philosopher and the mathematician; the investigations of the judge, the moralist.
Source: Webster's dictionaryThe first duty of a man is the seeking after and the investigation of truth. Cicero
The fear of God is not the beginning of wisdom. The fear of God is the death of wisdom. Skepticism and doubt lead to study and investigation, and investigation is the beginning of wisdom. Clarence Darrow
In mainstream economic theory, the firm and the market are, for the most part, assumed to exist and are not themselves the subject of investigation. One result has been that the crucial role of the law in determining the activities carried out by the firm and in the market has been largely ignored. Ronald Coase
Good fortune wears a pretty dress but its underclothes do not bear investigation. Russian Proverb
To believe is easier than investigation. Serbian Proverb
One who's innocent is not afraid of investigation. Persian Proverb