Truth
The meaning of the word truth extends from honesty, good faith, and sincerity in general, to agreement with fact or reality in particular. The term has no single definition about which the majority of professional philosophers and scholars agree. Various theories of truth continue to be debated. There are differing claims on such questions as what constitutes truth; how to define and identify truth; the roles that revealed and acquired knowledge play; and whether truth is subjective, relative, objective, or absolute.
Difficulties
Science is perhaps one of the only ways to know of the truth. Some argue that the truth is the exact opposite of what is observed and logical.
Truth as a Value
Truth can be considered to be a morally desirable trait in a person, since it the antithesis of "undesirable" traits such as deceit or corruption. Atheists in particular uphold truth as a desirable value, since it is something taught by science, and scientists themselves.