For this Day:

;

One and Two

When one teaches, two learn.
- Robert Half 

inseparable personal change

Although the connections are not always obvious, personal change is inseparable from social and political change.
 -Harriet Lerner, psychologist (b. 30 Nov 1944)

...disagreeable truth

He who, when called upon to speak a disagreeable truth, tells it boldly and has done, is both bolder and milder than he who nibbles in a low voice and never ceases nibbling. 
-Johann Kaspar Lavater, poet, writer, philosopher (1741-1801)

Not in parts...

One cannot hire a hand; the whole man always comes with it. 
-Peter Drucker, management consultant, professor, and writer (1909-2005)