The IMU seems to have a great deal (all?) of the proceedings of older ICM conferences online now at http://www.mathunion.org/Publications/historic-material/ . The written version of Weyl's address is at http://www.mathunion.org/ICM/ICM1954.1/Main/icm1954.1.0161.0174.ocr.pdf

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.