Seeing is believing.
More literally: To see is to believe.
Videō, vidēre, vīdī, vīsum (2): to see. Est: is. Crēdō, crēdere, crēdidī, crēditum (3): to believe; trust.
To live is to wage war.
Alt. : To live isat last to be a soldier.
Vīvō, vīvere, vīxī, vīctum (3): to live. Mīlitō, mīlitāre, mīlitāvī, mīlitātum (1): to be a soldier, wage war. Est: is. (The actual text is vivere, Lucili, militare est. He’s writing to his friend Lucilius.)
I wish to hear.
Cupiō, cupere, cupīvī/cupiī, cupītum (3, –iō): to desire, wish. Audiō, audīre, audīvī/audiī, audītum (4): to hear.
I dare to say it.
More literally: I dare to say.
Audeō, audēre, ausus sum (2, semi-deponent): to dare. (The meaning of “semi-deponent” will be explained later.) Dīcō, dīcere, dīxī, dictum (3): to say.