The great minds, which from time to time have existed in this world, were like doors thrown wide to understanding. I don't mean just their brilliance or philosophy or even psychology. I mean that the spoken words that have endured are those uttered by men who understood with their hearts.No one on earth understands everything; that all-comprehensive function belongs to God alone. But we all try to understand a little. Most of us realize that too late. We look back and think: If only I'd tried to understand. Many failures in human relationships derive from this common failure.Watching the birds flock to discuss their travels among the brilliant leaves, listening to the slow turning of the earth upon her axis, meditating on Nature herself, never uncertain no matter how uncertain her manifestations may be, I think of the instinct that sends the birds from one locality to another, of the lengthening shadows as we face toward autumn, and of the marvelous system that encourages the leaf to fall and nurture the soil. In the single flame of October it begins the lullaby that will put the roots of grass and flowers to sleep. This system, in the four seasons of my little world, will cover the ground with silent snow, and at a later date will shout that spring is coming and awaken sleepers to new life.The sun in his glory, the moon in her phases, the stars in their courses, all these are part of the system; and Nature, turning the wheel of the seasons, understands what she must accomplish.Each in our own way, I suppose, we try to understand what we must accomplish. Perhaps the most important thing of all is the attempt to understand others.

~ Faith Baldwin

[At the beginning of modern science], a light dawned on all those who study nature. They comprehended that reason has insight only into what it itself produces according to its own design; that it must take the lead with principles for its judgments according to constant laws and compel nature to answer its questions, rather than letting nature guide its movements by keeping reason, as it were, in leading-strings; for otherwise accidental observations, made according to no previously designed plan, can never connect up into a necessary law, which is yet what reason seeks and requires. Reason, in order to be taught by nature, must approach nature with its principles in one hand, according to which alone the agreement among appearances can count as laws, and, in the other hand, the experiments thought in accordance with these principles - yet in order to be instructed by nature not like a pupil, who has recited to him whatever the teacher wants to say, but like an appointed judge who compels witnesses to answer the questions he puts to them. Thus even physics owes the advantageous revolution in its way of thinking to the inspiration that what reason would not be able to know of itself and has to learn from nature, it has to seek in the latter (though not merely ascribe to it) in accordance with what reason itself puts into nature. This is how natural science was first brought to the secure course of a science after groping about for so many centuries.

~ Immanuel Kant