The solution of the difficulty is that the two mental pictures which experiment lead us to form - the one of the particles, the other of the waves - are both incomplete and have only the validity of analogies which are accurate only in limiting cases. Werner Heisenberg
The individual makes a clear effort to define moral values and principles that have validity and application apart from the authority of the groups of persons holding them and apart from the individual's own identification with the group. Lawrence Kohlberg
I kept wanting to push my image as validity; I wanted to see my portrait on a wall and know it was okay. Toyin Odutola
Hinduism's basic tenet is that many roads exist by which men have pursued and still pursue their quest for the truth and that none has universal validity. Kenneth Scott Latourette
I'm a Scorpio, and who knows if there is any validity to it, but I'm very emotional. I have high highs and low lows. Chely Wright