Joseph Priestley

The most important discoveries are often made by those who are not afraid to think for themselves.

The progress of knowledge is like the progress of light; it dispels the darkness of ignorance.

The true philosopher is one who is always ready to learn, and always ready to teach.

The love of knowledge is the noblest passion of the human soul.

The pursuit of truth is the noblest employment of the human mind.

The more we know of nature, the more we shall be convinced of the wisdom and power of its author.

The history of science is the history of human progress.

The greatest discoveries are often made by those who are not afraid to question authority.

The true method of philosophizing is to begin with observation, and to proceed from thence to experiment.

The more we know of the works of God, the more we shall be filled with admiration and gratitude.

The human mind is a wonderful instrument, capable of comprehending the most sublime truths.

The most important discoveries are often made by those who are not afraid to venture into the unknown.

The progress of truth is irresistible, and will ultimately prevail.

The true philosopher is one who is always seeking after truth, and always ready to embrace it, wherever it may be found.

The love of liberty is the noblest passion of the human heart.

The pursuit of happiness is the great end of human existence.

The more we know of nature, the more we shall be convinced of the infinite wisdom and power of its author.

The history of mankind is the history of human folly.

The greatest discoveries are often made by those who are not afraid to be singular.

The true method of philosophizing is to begin with doubt, and to proceed from thence to certainty.