1655  Man needs his difficulties because they are necessary to enjoy success,
1902  We are in the habit of exaggerating or imagining or anticipating sorrow. We are torn by things present or about things yet to come. Consider whether your proofs of future troubles are sure. For it is more often the case that we are troubled by our apprehensions.
2026  There are more things..likely to frighten us, than to crush us.We suffer more in the imagination than in reality.
1918  Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
2350  The indispensable first step to getting the things you want out of life is this: decide what you want.