Here are a few of my favourite quotations:
Ah! One’s reach should exceed one’s grasp or what’s a heaven for?
– Robert Browning
How is it that we journey to wonder at the might of the mountains, the surge of the seas, the roaming of the rivers, the awesomeness of the oceans, and the circling of the stars. . . while we pass ourselves by without noticing?
– St Augustine
Ideals are like stars: you will not succeed in touching them with your hands, but like the seafaring man on the ocean desert of waters, you choose them as your guides, and following them you reach your destiny.
– Carl Schurz