The general mental qualification necessary for scientific advancement is that which is usually denominated "common sense," though added to this, imagination, induction, and trained logic, either of common language or of mathematics, are important adjuncts.
Joseph HenryThe seeds of great discoveries are constantly floating around us, but they only take root in minds well-prepared to receive them.
Joseph HenryMeteorology has ever been an apple of contention, as if the violent commotions of the atmosphere induced a sympathetic effect on the minds of those who have attempted to study them.
Joseph Henry