Womens strong qualities have become despised because of their weakness. The obvious remedy is to create a feminine character with all the strength of Superman plus all the allure of a good and beautiful woman. – William Moulton Marston

It is a sign of contraction of the mind when it is content, or of weariness. A spirited mind never stops within itself it is always aspiring and going beyond its strength. – Michel de Montaigne

Difficulty, my brethren, is the nurse of greatness – a harsh nurse, who roughly rocks her foster – children into strength and athletic proportion. – William C. Bryant