Where can I find the text of Weyl's Fields Medal speech for Serre?
Google Books snippet view shows you different little snippets of the speech. The beginning of the speechs has "by study and information we became convinced that Serre and Kodaira had not only made highly original and important..." If you do a search for the phrase "convinced that Serre" (with quotes) in Google Books, you'll find several books that have the speech: "International Mathematical Congresses: An Illustrated History", the ICM Proceedings, a French "Compte Rendu" of the Proceedings, and the "Gesammelte Abhandlungen" of Hermann Weyl. The search comes up empty elsewhere, which strongly suggests that you need to get one of these books from the library for the whole speech.
The Intelligencer has the last paragraph, which has been reprinted many times and is surely fair use:
Here ends my report. If I omitted essential parts or misrepresented others, I ask for your pardon, Dr. Serre and Dr. Kodaira; it is not easy for an older man to follow your striding paces. Dear Kodaira: Your work has more than one connection with what I tried to do in my younger years; but you reached heights of which I never dreamt. Since you came to Princeton in 1949 it has been one of the greatest joys of my life to watch your mathematical development. I have no such close personal relation to you, Dr. Serre, and your research; but let me say this: that never before have I witnessed such a brilliant ascension of a star in the mathematical sky as yours. The mathematical community is proud of the work you both have done. It shows that the old gnarled tree of mathematics is still full of sap and life. Carry on as you began!
The IMU seems to have a great deal (all?) of the proceedings of older ICM conferences online now on the IMU website. The written version of Weyl's address is on page 161 of Volume 1 of the 1954 proceedings.
Is this sufficient?
http://www.springerlink.com/content/23260u245q251055/