Who said "Vhen ve serve others, ve serve the best part of ourselves."?

This quote is attributed to Chekov.

Vhen ve serve others, ve serve the best part of ourselves. - Chekov

"Vhen ve serve others, ve serve the best part of ourselves."

Chekov Leadership

"In Russia, ve have a saying: 'The best time to plant a tree vas twenty years ago. The second best time is now.'"

"Vhat is science vithout the courage to explore the unknown?"

"I have alvays found that friendship requires vork, but it is vork vorth doing."

"The human spirit is remarkably resilient - ve survive vhat ve must endure."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"