Some 15 years ago the radiation of uranium was discovered by Henri Becquerel, and two years later the study of this phenomenon was extended to other substances, first by me, and then by Pierre Curie and myself.

• 大约十五年前铀的辐射由亨利·贝克勒尔发现，两年以后，对这一现象的研究首先由我，然后由皮埃尔·居里和我自己扩展到了对其他物质的研究。