The secret of concentration is the secret of self-discovery. You reach inside yourself to discover your personal resources, and what it takes to match them to the challenge. ↗
As was to be expected, the discovery of the nervous apparatus of the salivary glands immediately impelled physiologists to seek a similar apparatus in other glands lying deeper in the digestive canal. ↗
The Jews' greatest contribution to history is dissatisfaction! We're a nation born to be discontented. Whatever exists we believe can be changed for the better. ↗