Adversity is the mother of progress.

Those who are really convinced that they have made progress in science would not demand freedom for the new views to continue side by side with the old, but the substitution of the new views for the old.

Social justice and progress are the absolute guarantors of riot prevention.

Human progress comes through the tireless efforts and the persistent work of dedicated individuals who are willing to be co-workers with God.

The trailblazers in human, academic, scientific, and religious freedom have always been nonconformists. In any cause that concerns the progress of mankind, put your faith in the nonconformist!

The test of our progress is not whether we add more to the abundance of those who have much it is whether we provide enough for those who have little.