A little Madness in the Spring Is wholesome even for the King.

Emily Dickinson

O, wind, if winter comes, can spring be far behind?

Percy Bysshe Shelley

No man can taste the fruits of autumn while he is delighting his scent with the flowers of spring.

Samuel Johnson

The first glance at History convinces us that the actions of men proceed from their needs, their passions, their characters and talents; and impresses us with the belief that such needs, passions and interests are the sole spring of actions.

Georg Wilhelm Friedrich Hegel