Recommended translations:

• "Alcibiades I," trans. C. Lord in The Roots of Political Philosophy, ed. Thomas L. Pangle (Cornell, 1987).
• Socrates and Alcibiades: Four Texts, ed. David Johnson (Focus, 2003).

 

Excerpt:

Socrates
Son of Cleinias, I think it must surprise you that I, the first of all your lovers, am the only one of them who has not given up his suit and thrown you over, and whereas they have all pestered you with their conversation I have not spoken one word to you for so many years. The cause of this has been nothing human, but a certain spiritual opposition, of whose power you shall be informed at some later time. However, it now opposes me no longer, so I have accordingly come to you; and I am in good hopes that it will not oppose me again in the future. Now I have been observing you all this time, and have formed a pretty good notion of your behavior to your lovers: for although they were many and high-spirited, everyone of them has found your spirit too strong for him and has run away.

Online:
Amazon (Recommended Translation: Lord)
Amazon (Recommended Translation: Johnson)
Project Perseus (English, Free Access)
Project Perseus (Greek, Free Access)
Project Gutenberg (Free Access)