Truth
Veracity
Synonyms: Veracity, verity, candour, genuineness, gospel truth, correctness, validity, factuality, dinkum oil, truthfulness, sincerity, honesty, gospel, accuracy, rightness, factualness, and authenticity.
The fact of the matter
Synonyms: The fact of the matter, the case, gospel, God's truth, fact(s), real life, what actually/really happened, so, gospel truth, the honest truth, reality, and actuality.
Fact
In fact
Synonyms: In fact, in point of fact, in reality, actually, if truth be told, in actual fact, as a matter of fact, really, to tell the truth, and in sooth.
Example Sentences
Change is the only constant in life, always evolving.
Time waits for no one, so seize every moment wisely.
Actions speak louder than words, showing true intent clearly.
Happiness comes from within, not from external sources or things.