Daniel J. Siegel Professions : Author Born : September 2, 1957 Browse All Authors Top 21 quotes by Daniel J. Siegel The number of possible "on-off" patterns of neuronal firing is immense, estimated as a staggering ten times ten one million times (ten to the millionth power). The brain is obviously capable of an imponderably huge variety of activity; the fact that it is often organized and functional is quite an accomplishment! Daniel J. Siegel accomplishment brain numbers Similar Authors F. E. Marsh author Iimani David author Beatrice Faust author Isabella Macdonald Alden author Isabella Beeton author Alan AtKisson author All Authors