There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Denis Diderot
A circle is the reflection of eternity. It has no beginning and it has no end - and if you put several circles over each other, then you get a spiral. Maynard James Keenan
I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death. Leonardo da Vinci
Without reflection, we go blindly on our way, creating more unintended consequences, and failing to achieve anything useful. Margaret J. Wheatley
The beginning of love is to let those we love be perfectly themselves, and not to twist them to fit our own image. Otherwise we love only the reflection of ourselves we find in them. Thomas Merton