We cannot be more sensitive to pleasure without being more sensitive to pain. Alan Watts
The man of character, sensitive to the meaning of what he is doing, will know how to discover the ethical paths in the maze of possible behavior. Earl Warren
The final result of our researches has widened the class of substances sensitive to light vibrations, until we can propound the fact of such sensitiveness being a general property of all matter. Alexander Graham Bell
There is no policy too sensitive to question, and no subject so taboo that you cannot even mention it. Lee Hsien Loong
A mathematician is only perfect insofar as he is a perfect man, sensitive to the beauty of truth. Johann Wolfgang von Goethe
If a totally new image is to come into being however, there must be sensitivity to internal messages, the image itself must be sensitive to change, must be unstable, and it must include a value image which places high value on trials, experiments, and the trying of new things. Kenneth Boulding